The Experts below are selected from a list of 204 Experts worldwide ranked by ideXlab platform

Yen Wei - One of the best experts on this subject based on the ideXlab platform.

  • carbon nanotubes Based Polymer Nanocomposites bio mimic preparation and methylene blue adsorption
    Journal of environmental chemical engineering, 2020
    Co-Authors: Defu Gan, Qiang Huang, Meiying Liu, Hongye Huang, Xiaoyong Zhang, Yen Wei, Jibo Dou, Junyu Chen, Zhenyu Yang
    Abstract:

    Abstract The effective removal of environmental pollutants using nanomaterials and their composites has attracted great attention over the past few decades. Among them, carbon nanotubes (CNTs) have been extensively applied as adsorbents to remove various environmental pollutants for their small size, large surface areas and unique chemical structure. However, the adsorption performance of pristine CNTs is largely limited for their poor dispersibility and lack of functional groups. In this work, CNTs Based composites (CNTs@poly(S-co-MA-DA)) have been successfully synthesized through combination of ring-opening reaction and mussel inspired chemistry. The pristine CNTs and as-prepared CNTs@poly(S-co-MA-DA) were characterized by transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The influence of various experimental factors on the adsorption process, such as contact time, initial MB concentration, solution pH and temperature, was studied. Experimental results show that adsorption capacity of CNTs@poly(S-co-MA-DA) is about 4 times that of pristine CNTs in same experimental conditions. The kinetics and isotherms studies suggest that pseudo-second-order kinetic and Freundlich isotherm models could well fit with the adsorption data. The thermodynamic studies imply that the adsorption process of MB onto CNTs@poly(S-co-MA-DA) is endothermic and spontaneous. The adsorption mechanism might be the synergistic action of physical adsorption of CNTs@poly(S-co-MA-DA) particles and electrostatic interaction between the MB and functional groups on the surface of CNTs@poly(S-co-MA-DA) composites, including carboxyl, acylamino, hydroxyl and aromatic moieties. These obtained results and facts indicate that the as-prepared CNTs@poly(S-co-MA-DA) could be utilized as high-performance adsorbents with great potential applications in environmental treatment.

  • surface modification and drug delivery applications of mos 2 nanosheets with Polymers through the combination of mussel inspired chemistry and set lrp
    Journal of The Taiwan Institute of Chemical Engineers, 2018
    Co-Authors: Guangjian Zeng, Meiying Liu, Qing Wan, Xiaoyong Zhang, Tingting Chen, Long Huang, Ruming Jiang, Yanfeng Dai, Yuanqing Wen, Yen Wei
    Abstract:

    Abstract Mussel inspired chemistry is a promising surface modification tool, which has attracted great research attention for different applications owing to its universality and interest properties. In this work, a rather simple and efficient method for the surface modification of MoS2 nanosheets with coPolymers was achieved through the combination of mussel inspired chemistry and single-electron transfer living radical Polymerization (SET-LRP) using 2-methacryloyloxyethyl phosphorylcholine (MPC) and itaconic acid (IA) as the monomers. The obtained MoS2-PDA-poly(MPC-IA) Nanocomposites were ascertained by a series of characterization techniques, such as nuclear magnetic resonance spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. Moreover, the MoS2-PDA-poly(MPC-IA) Nanocomposites showed enhanced dispersbility and great biocompatibility. The results implied that the MoS2-PDA-poly(MPC-IA) Nanocomposites showed great potential in the field of biomedical science. In this work, the drug loading capability and controlled drug release behavior towards CDDP have been investigated. The drug loading in MoS2-PDA-poly(MPC-IA) composites is as high as 55.26%. All of these above results suggested that the combination of mussel inspired chemistry and SET-LRP is a facile and efficient strategy for fabrication of MoS2 Based Polymer Nanocomposites with great potential application in biomedical fields.

  • facile and highly efficient fabrication of graphene oxide Based Polymer Nanocomposites through mussel inspired chemistry and their environmental pollutant removal application
    Journal of Materials Science, 2017
    Co-Authors: Qing Wan, Yili Xie, Liucheng Mao, Qiang Huang, Meiying Liu, Fengjie Deng, Xiaoyong Zhang, Jianwen Tian, Qingsong Zhang, Yen Wei
    Abstract:

    Graphene oxide (GO)-Based Polymer Nanocomposites were fabricated in aqueous solution via a novel strategy combination of mussel-inspired chemistry and Michael addition reaction. These GO-Based Polymer Nanocomposites were used as efficient absorbents for the removal of organic dyes methylene blue (MB) from the aqueous solution. The successful preparation of GO-Based Polymer Nanocomposites (GO-PDA-PSPSH) was confirmed by a number of characterization techniques in detail. Furthermore, a series of influential factors such as contact time, initial solution pH, and temperature were investigated and optimized. The optimal adsorption time of GO-PDA-PSPSH Nanocomposites toward MB was 58 min. The maximum adsorption efficiency was occurred at pH 7. On the other hand, accompanying with the elevation of temperature, removal efficiency of GO-PDA-PSPSH Nanocomposites was significantly increased, indicating that the adsorption process of MB by GO-PDA-PSPSH Nanocomposites was endothermic. More importantly, the adsorption capability of GO-PDA-PSPSH Nanocomposites was obviously greater than many other GO-Based Nanocomposites. Taken together, we have developed a facile biomimetic strategy for the preparation of GO-Based Polymer Nanocomposites, which showed excellent adsorption capability toward MB and are promising for environmental adsorption applications.

  • towards development of a versatile and efficient strategy for fabrication of go Based Polymer Nanocomposites
    Polymer Chemistry, 2015
    Co-Authors: Qing Wan, Liucheng Mao, Ke Wang, Meiying Liu, Hongye Huang, Xiaoyong Zhang, Guangjian Zeng, Yen Wei
    Abstract:

    Surface modification of graphene oxide (GO) with Polymers is of particular importance for its applications. Although much progress has been made in the surface modification of GO, the surface modification of GO with synthetic Polymers in aqueous solution has demonstrated to be problematic. In the present work, we report for the first time a versatile and effective method for the surface modification of GO with synthetic Polymers in aqueous solution taking advantage of mussel inspired chemistry. Poly(ethylene glycol) methyl ether methacrylate and itaconic anhydride (IA) monomers were chosen to prepare hydrophilic Polymers (poly(IA-co-PEGMA)) via free radical living Polymerization. These hydrophilic Polymers were further reacted with dopamine through ring-opening reaction between IA and dopamine, which could be highly efficiently attached to the GO surface via mussel inspired chemistry using dopamine as the adhesion component. The successful modification of GO with Polymers was confirmed by using a series of characterization techniques. The resulting GO–Polymer Nanocomposites displayed great dispersibility in aqueous and organic solutions, making them promising for various applications. Compared with previous methods, the biomimic strategy described in this work could facilely and effectively immobilize synthetic Polymers on GO in aqueous solution at room temperature and under an air atmosphere. More importantly, this strategy could also be utilized for the fabrication of almost any Polymer nanocomposite because of the designability and applicability of living Polymerization, and the versatility and strong adhesion of dopamine.

Xiaoyong Zhang - One of the best experts on this subject based on the ideXlab platform.

  • carbon nanotubes Based Polymer Nanocomposites bio mimic preparation and methylene blue adsorption
    Journal of environmental chemical engineering, 2020
    Co-Authors: Defu Gan, Qiang Huang, Meiying Liu, Hongye Huang, Xiaoyong Zhang, Yen Wei, Jibo Dou, Junyu Chen, Zhenyu Yang
    Abstract:

    Abstract The effective removal of environmental pollutants using nanomaterials and their composites has attracted great attention over the past few decades. Among them, carbon nanotubes (CNTs) have been extensively applied as adsorbents to remove various environmental pollutants for their small size, large surface areas and unique chemical structure. However, the adsorption performance of pristine CNTs is largely limited for their poor dispersibility and lack of functional groups. In this work, CNTs Based composites (CNTs@poly(S-co-MA-DA)) have been successfully synthesized through combination of ring-opening reaction and mussel inspired chemistry. The pristine CNTs and as-prepared CNTs@poly(S-co-MA-DA) were characterized by transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The influence of various experimental factors on the adsorption process, such as contact time, initial MB concentration, solution pH and temperature, was studied. Experimental results show that adsorption capacity of CNTs@poly(S-co-MA-DA) is about 4 times that of pristine CNTs in same experimental conditions. The kinetics and isotherms studies suggest that pseudo-second-order kinetic and Freundlich isotherm models could well fit with the adsorption data. The thermodynamic studies imply that the adsorption process of MB onto CNTs@poly(S-co-MA-DA) is endothermic and spontaneous. The adsorption mechanism might be the synergistic action of physical adsorption of CNTs@poly(S-co-MA-DA) particles and electrostatic interaction between the MB and functional groups on the surface of CNTs@poly(S-co-MA-DA) composites, including carboxyl, acylamino, hydroxyl and aromatic moieties. These obtained results and facts indicate that the as-prepared CNTs@poly(S-co-MA-DA) could be utilized as high-performance adsorbents with great potential applications in environmental treatment.

  • surface modification and drug delivery applications of mos 2 nanosheets with Polymers through the combination of mussel inspired chemistry and set lrp
    Journal of The Taiwan Institute of Chemical Engineers, 2018
    Co-Authors: Guangjian Zeng, Meiying Liu, Qing Wan, Xiaoyong Zhang, Tingting Chen, Long Huang, Ruming Jiang, Yanfeng Dai, Yuanqing Wen, Yen Wei
    Abstract:

    Abstract Mussel inspired chemistry is a promising surface modification tool, which has attracted great research attention for different applications owing to its universality and interest properties. In this work, a rather simple and efficient method for the surface modification of MoS2 nanosheets with coPolymers was achieved through the combination of mussel inspired chemistry and single-electron transfer living radical Polymerization (SET-LRP) using 2-methacryloyloxyethyl phosphorylcholine (MPC) and itaconic acid (IA) as the monomers. The obtained MoS2-PDA-poly(MPC-IA) Nanocomposites were ascertained by a series of characterization techniques, such as nuclear magnetic resonance spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. Moreover, the MoS2-PDA-poly(MPC-IA) Nanocomposites showed enhanced dispersbility and great biocompatibility. The results implied that the MoS2-PDA-poly(MPC-IA) Nanocomposites showed great potential in the field of biomedical science. In this work, the drug loading capability and controlled drug release behavior towards CDDP have been investigated. The drug loading in MoS2-PDA-poly(MPC-IA) composites is as high as 55.26%. All of these above results suggested that the combination of mussel inspired chemistry and SET-LRP is a facile and efficient strategy for fabrication of MoS2 Based Polymer Nanocomposites with great potential application in biomedical fields.

  • facile and highly efficient fabrication of graphene oxide Based Polymer Nanocomposites through mussel inspired chemistry and their environmental pollutant removal application
    Journal of Materials Science, 2017
    Co-Authors: Qing Wan, Yili Xie, Liucheng Mao, Qiang Huang, Meiying Liu, Fengjie Deng, Xiaoyong Zhang, Jianwen Tian, Qingsong Zhang, Yen Wei
    Abstract:

    Graphene oxide (GO)-Based Polymer Nanocomposites were fabricated in aqueous solution via a novel strategy combination of mussel-inspired chemistry and Michael addition reaction. These GO-Based Polymer Nanocomposites were used as efficient absorbents for the removal of organic dyes methylene blue (MB) from the aqueous solution. The successful preparation of GO-Based Polymer Nanocomposites (GO-PDA-PSPSH) was confirmed by a number of characterization techniques in detail. Furthermore, a series of influential factors such as contact time, initial solution pH, and temperature were investigated and optimized. The optimal adsorption time of GO-PDA-PSPSH Nanocomposites toward MB was 58 min. The maximum adsorption efficiency was occurred at pH 7. On the other hand, accompanying with the elevation of temperature, removal efficiency of GO-PDA-PSPSH Nanocomposites was significantly increased, indicating that the adsorption process of MB by GO-PDA-PSPSH Nanocomposites was endothermic. More importantly, the adsorption capability of GO-PDA-PSPSH Nanocomposites was obviously greater than many other GO-Based Nanocomposites. Taken together, we have developed a facile biomimetic strategy for the preparation of GO-Based Polymer Nanocomposites, which showed excellent adsorption capability toward MB and are promising for environmental adsorption applications.

  • towards development of a versatile and efficient strategy for fabrication of go Based Polymer Nanocomposites
    Polymer Chemistry, 2015
    Co-Authors: Qing Wan, Liucheng Mao, Ke Wang, Meiying Liu, Hongye Huang, Xiaoyong Zhang, Guangjian Zeng, Yen Wei
    Abstract:

    Surface modification of graphene oxide (GO) with Polymers is of particular importance for its applications. Although much progress has been made in the surface modification of GO, the surface modification of GO with synthetic Polymers in aqueous solution has demonstrated to be problematic. In the present work, we report for the first time a versatile and effective method for the surface modification of GO with synthetic Polymers in aqueous solution taking advantage of mussel inspired chemistry. Poly(ethylene glycol) methyl ether methacrylate and itaconic anhydride (IA) monomers were chosen to prepare hydrophilic Polymers (poly(IA-co-PEGMA)) via free radical living Polymerization. These hydrophilic Polymers were further reacted with dopamine through ring-opening reaction between IA and dopamine, which could be highly efficiently attached to the GO surface via mussel inspired chemistry using dopamine as the adhesion component. The successful modification of GO with Polymers was confirmed by using a series of characterization techniques. The resulting GO–Polymer Nanocomposites displayed great dispersibility in aqueous and organic solutions, making them promising for various applications. Compared with previous methods, the biomimic strategy described in this work could facilely and effectively immobilize synthetic Polymers on GO in aqueous solution at room temperature and under an air atmosphere. More importantly, this strategy could also be utilized for the fabrication of almost any Polymer nanocomposite because of the designability and applicability of living Polymerization, and the versatility and strong adhesion of dopamine.

  • carbon nanotube Based Polymer Nanocomposites biomimic preparation and organic dye adsorption applications
    RSC Advances, 2015
    Co-Authors: Yili Xie, Leichun Liu, Liucheng Mao, Ke Wang, Qiang Huang, Meiying Liu, Qing Wan, Fengjie Deng, Hongye Huang, Xiaoyong Zhang
    Abstract:

    The development of highly efficient adsorbents for the removal of organic dyes from wastewater has attracted much attention recently. Surface modification of adsorbents with Polymers is a general strategy for enhancement of their adsorption capability. In this work, a novel strategy of a combination of mussel inspired chemistry and SET-LRP has been developed for the fabrication of highly efficient adsorbents, poly(sodium-p-styrene sulfonate) modified multi-walled carbon nanotubes (CNTs), for the first time. The adsorption applications of these CNT Based Polymer Nanocomposites for the removal of a cationic dye (methylene blue, MB) from a water solution were also examined. The successful preparation of these CNT Based Polymer Nanocomposites was confirmed by a series of characterization techniques. Furthermore, the influence of adsorption parameters including contact time, concentration of MB, adsorption temperature and time has been investigated. According to the experimental data, the adsorption capacity of MB was directly proportional to the contact time, while inversely proportional to the temperature. The maximum adsorption capacity of MB for CNT-PDA-PSPSH was 160 mg g−1, demonstrating the excellent adsorptive property of functional CNTs for MB. The method described in this work for the preparation of CNT Based Polymer Nanocomposites is simple, effective and general, and could be a universal strategy for preparation of highly efficient adsorbents for environmental applications.

Meiying Liu - One of the best experts on this subject based on the ideXlab platform.

  • carbon nanotubes Based Polymer Nanocomposites bio mimic preparation and methylene blue adsorption
    Journal of environmental chemical engineering, 2020
    Co-Authors: Defu Gan, Qiang Huang, Meiying Liu, Hongye Huang, Xiaoyong Zhang, Yen Wei, Jibo Dou, Junyu Chen, Zhenyu Yang
    Abstract:

    Abstract The effective removal of environmental pollutants using nanomaterials and their composites has attracted great attention over the past few decades. Among them, carbon nanotubes (CNTs) have been extensively applied as adsorbents to remove various environmental pollutants for their small size, large surface areas and unique chemical structure. However, the adsorption performance of pristine CNTs is largely limited for their poor dispersibility and lack of functional groups. In this work, CNTs Based composites (CNTs@poly(S-co-MA-DA)) have been successfully synthesized through combination of ring-opening reaction and mussel inspired chemistry. The pristine CNTs and as-prepared CNTs@poly(S-co-MA-DA) were characterized by transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The influence of various experimental factors on the adsorption process, such as contact time, initial MB concentration, solution pH and temperature, was studied. Experimental results show that adsorption capacity of CNTs@poly(S-co-MA-DA) is about 4 times that of pristine CNTs in same experimental conditions. The kinetics and isotherms studies suggest that pseudo-second-order kinetic and Freundlich isotherm models could well fit with the adsorption data. The thermodynamic studies imply that the adsorption process of MB onto CNTs@poly(S-co-MA-DA) is endothermic and spontaneous. The adsorption mechanism might be the synergistic action of physical adsorption of CNTs@poly(S-co-MA-DA) particles and electrostatic interaction between the MB and functional groups on the surface of CNTs@poly(S-co-MA-DA) composites, including carboxyl, acylamino, hydroxyl and aromatic moieties. These obtained results and facts indicate that the as-prepared CNTs@poly(S-co-MA-DA) could be utilized as high-performance adsorbents with great potential applications in environmental treatment.

  • surface modification and drug delivery applications of mos 2 nanosheets with Polymers through the combination of mussel inspired chemistry and set lrp
    Journal of The Taiwan Institute of Chemical Engineers, 2018
    Co-Authors: Guangjian Zeng, Meiying Liu, Qing Wan, Xiaoyong Zhang, Tingting Chen, Long Huang, Ruming Jiang, Yanfeng Dai, Yuanqing Wen, Yen Wei
    Abstract:

    Abstract Mussel inspired chemistry is a promising surface modification tool, which has attracted great research attention for different applications owing to its universality and interest properties. In this work, a rather simple and efficient method for the surface modification of MoS2 nanosheets with coPolymers was achieved through the combination of mussel inspired chemistry and single-electron transfer living radical Polymerization (SET-LRP) using 2-methacryloyloxyethyl phosphorylcholine (MPC) and itaconic acid (IA) as the monomers. The obtained MoS2-PDA-poly(MPC-IA) Nanocomposites were ascertained by a series of characterization techniques, such as nuclear magnetic resonance spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. Moreover, the MoS2-PDA-poly(MPC-IA) Nanocomposites showed enhanced dispersbility and great biocompatibility. The results implied that the MoS2-PDA-poly(MPC-IA) Nanocomposites showed great potential in the field of biomedical science. In this work, the drug loading capability and controlled drug release behavior towards CDDP have been investigated. The drug loading in MoS2-PDA-poly(MPC-IA) composites is as high as 55.26%. All of these above results suggested that the combination of mussel inspired chemistry and SET-LRP is a facile and efficient strategy for fabrication of MoS2 Based Polymer Nanocomposites with great potential application in biomedical fields.

  • facile and highly efficient fabrication of graphene oxide Based Polymer Nanocomposites through mussel inspired chemistry and their environmental pollutant removal application
    Journal of Materials Science, 2017
    Co-Authors: Qing Wan, Yili Xie, Liucheng Mao, Qiang Huang, Meiying Liu, Fengjie Deng, Xiaoyong Zhang, Jianwen Tian, Qingsong Zhang, Yen Wei
    Abstract:

    Graphene oxide (GO)-Based Polymer Nanocomposites were fabricated in aqueous solution via a novel strategy combination of mussel-inspired chemistry and Michael addition reaction. These GO-Based Polymer Nanocomposites were used as efficient absorbents for the removal of organic dyes methylene blue (MB) from the aqueous solution. The successful preparation of GO-Based Polymer Nanocomposites (GO-PDA-PSPSH) was confirmed by a number of characterization techniques in detail. Furthermore, a series of influential factors such as contact time, initial solution pH, and temperature were investigated and optimized. The optimal adsorption time of GO-PDA-PSPSH Nanocomposites toward MB was 58 min. The maximum adsorption efficiency was occurred at pH 7. On the other hand, accompanying with the elevation of temperature, removal efficiency of GO-PDA-PSPSH Nanocomposites was significantly increased, indicating that the adsorption process of MB by GO-PDA-PSPSH Nanocomposites was endothermic. More importantly, the adsorption capability of GO-PDA-PSPSH Nanocomposites was obviously greater than many other GO-Based Nanocomposites. Taken together, we have developed a facile biomimetic strategy for the preparation of GO-Based Polymer Nanocomposites, which showed excellent adsorption capability toward MB and are promising for environmental adsorption applications.

  • towards development of a versatile and efficient strategy for fabrication of go Based Polymer Nanocomposites
    Polymer Chemistry, 2015
    Co-Authors: Qing Wan, Liucheng Mao, Ke Wang, Meiying Liu, Hongye Huang, Xiaoyong Zhang, Guangjian Zeng, Yen Wei
    Abstract:

    Surface modification of graphene oxide (GO) with Polymers is of particular importance for its applications. Although much progress has been made in the surface modification of GO, the surface modification of GO with synthetic Polymers in aqueous solution has demonstrated to be problematic. In the present work, we report for the first time a versatile and effective method for the surface modification of GO with synthetic Polymers in aqueous solution taking advantage of mussel inspired chemistry. Poly(ethylene glycol) methyl ether methacrylate and itaconic anhydride (IA) monomers were chosen to prepare hydrophilic Polymers (poly(IA-co-PEGMA)) via free radical living Polymerization. These hydrophilic Polymers were further reacted with dopamine through ring-opening reaction between IA and dopamine, which could be highly efficiently attached to the GO surface via mussel inspired chemistry using dopamine as the adhesion component. The successful modification of GO with Polymers was confirmed by using a series of characterization techniques. The resulting GO–Polymer Nanocomposites displayed great dispersibility in aqueous and organic solutions, making them promising for various applications. Compared with previous methods, the biomimic strategy described in this work could facilely and effectively immobilize synthetic Polymers on GO in aqueous solution at room temperature and under an air atmosphere. More importantly, this strategy could also be utilized for the fabrication of almost any Polymer nanocomposite because of the designability and applicability of living Polymerization, and the versatility and strong adhesion of dopamine.

  • carbon nanotube Based Polymer Nanocomposites biomimic preparation and organic dye adsorption applications
    RSC Advances, 2015
    Co-Authors: Yili Xie, Leichun Liu, Liucheng Mao, Ke Wang, Qiang Huang, Meiying Liu, Qing Wan, Fengjie Deng, Hongye Huang, Xiaoyong Zhang
    Abstract:

    The development of highly efficient adsorbents for the removal of organic dyes from wastewater has attracted much attention recently. Surface modification of adsorbents with Polymers is a general strategy for enhancement of their adsorption capability. In this work, a novel strategy of a combination of mussel inspired chemistry and SET-LRP has been developed for the fabrication of highly efficient adsorbents, poly(sodium-p-styrene sulfonate) modified multi-walled carbon nanotubes (CNTs), for the first time. The adsorption applications of these CNT Based Polymer Nanocomposites for the removal of a cationic dye (methylene blue, MB) from a water solution were also examined. The successful preparation of these CNT Based Polymer Nanocomposites was confirmed by a series of characterization techniques. Furthermore, the influence of adsorption parameters including contact time, concentration of MB, adsorption temperature and time has been investigated. According to the experimental data, the adsorption capacity of MB was directly proportional to the contact time, while inversely proportional to the temperature. The maximum adsorption capacity of MB for CNT-PDA-PSPSH was 160 mg g−1, demonstrating the excellent adsorptive property of functional CNTs for MB. The method described in this work for the preparation of CNT Based Polymer Nanocomposites is simple, effective and general, and could be a universal strategy for preparation of highly efficient adsorbents for environmental applications.

Alain Dufresne - One of the best experts on this subject based on the ideXlab platform.

  • ionic compatibilization of cellulose nanocrystals with quaternary ammonium salt and their melt extrusion with polypropylene
    ACS Applied Materials & Interfaces, 2016
    Co-Authors: Malladi Nagalakshmaiah, Nadia El Kissi, Alain Dufresne
    Abstract:

    On account to their high mechanical properties along with high reinforcing capacity, cellulose nanocrystals (CNCs) could be the ultimate choice for Polymer Nanocomposites as filler. Recently, different strategies have been investigated for the melt extrusion of CNC-Based Polymer Nanocomposites because it is a solvent-free process and because this technique is more viable for commercial industrialization. However, most thermoplastic Polymers are processed at high temperatures, and sulfuric acid preparation of CNC limits the processing because of surface sulfate groups degradation. In this study we profitably used these negatively charged groups, and quaternary ammonium salt was ionically adsorbed on CNC by a simple aqueous method. Fourier transform infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction were used to characterize adsorbed CNC, and changes in polarity were investigated by contact angle measurements. Modified CNC was extruded with polypropylene at 190 °C, and the ensuing comp...

  • ionic compatibilization of cellulose nanocrystals with quaternary ammonium salt and their melt extrusion with polypropylene
    ACS Applied Materials & Interfaces, 2016
    Co-Authors: Malladi Nagalakshmaiah, Nadia El Kissi, Alain Dufresne
    Abstract:

    On account to their high mechanical properties along with high reinforcing capacity, cellulose nanocrystals (CNCs) could be the ultimate choice for Polymer Nanocomposites as filler. Recently, different strategies have been investigated for the melt extrusion of CNC-Based Polymer Nanocomposites because it is a solvent-free process and because this technique is more viable for commercial industrialization. However, most thermoplastic Polymers are processed at high temperatures, and sulfuric acid preparation of CNC limits the processing because of surface sulfate groups degradation. In this study we profitably used these negatively charged groups, and quaternary ammonium salt was ionically adsorbed on CNC by a simple aqueous method. Fourier transform infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction were used to characterize adsorbed CNC, and changes in polarity were investigated by contact angle measurements. Modified CNC was extruded with polypropylene at 190 °C, and the ensuing composites were characterized in terms of mechanical (by dynamic mechanical analysis and tensile tests), thermal (by differential scanning calorimetry), and morphological (scanning electron microscopy) properties. The melt rheology of PP-Based Nanocomposites was also reported.

Qing Wan - One of the best experts on this subject based on the ideXlab platform.

  • surface modification and drug delivery applications of mos 2 nanosheets with Polymers through the combination of mussel inspired chemistry and set lrp
    Journal of The Taiwan Institute of Chemical Engineers, 2018
    Co-Authors: Guangjian Zeng, Meiying Liu, Qing Wan, Xiaoyong Zhang, Tingting Chen, Long Huang, Ruming Jiang, Yanfeng Dai, Yuanqing Wen, Yen Wei
    Abstract:

    Abstract Mussel inspired chemistry is a promising surface modification tool, which has attracted great research attention for different applications owing to its universality and interest properties. In this work, a rather simple and efficient method for the surface modification of MoS2 nanosheets with coPolymers was achieved through the combination of mussel inspired chemistry and single-electron transfer living radical Polymerization (SET-LRP) using 2-methacryloyloxyethyl phosphorylcholine (MPC) and itaconic acid (IA) as the monomers. The obtained MoS2-PDA-poly(MPC-IA) Nanocomposites were ascertained by a series of characterization techniques, such as nuclear magnetic resonance spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. Moreover, the MoS2-PDA-poly(MPC-IA) Nanocomposites showed enhanced dispersbility and great biocompatibility. The results implied that the MoS2-PDA-poly(MPC-IA) Nanocomposites showed great potential in the field of biomedical science. In this work, the drug loading capability and controlled drug release behavior towards CDDP have been investigated. The drug loading in MoS2-PDA-poly(MPC-IA) composites is as high as 55.26%. All of these above results suggested that the combination of mussel inspired chemistry and SET-LRP is a facile and efficient strategy for fabrication of MoS2 Based Polymer Nanocomposites with great potential application in biomedical fields.

  • facile and highly efficient fabrication of graphene oxide Based Polymer Nanocomposites through mussel inspired chemistry and their environmental pollutant removal application
    Journal of Materials Science, 2017
    Co-Authors: Qing Wan, Yili Xie, Liucheng Mao, Qiang Huang, Meiying Liu, Fengjie Deng, Xiaoyong Zhang, Jianwen Tian, Qingsong Zhang, Yen Wei
    Abstract:

    Graphene oxide (GO)-Based Polymer Nanocomposites were fabricated in aqueous solution via a novel strategy combination of mussel-inspired chemistry and Michael addition reaction. These GO-Based Polymer Nanocomposites were used as efficient absorbents for the removal of organic dyes methylene blue (MB) from the aqueous solution. The successful preparation of GO-Based Polymer Nanocomposites (GO-PDA-PSPSH) was confirmed by a number of characterization techniques in detail. Furthermore, a series of influential factors such as contact time, initial solution pH, and temperature were investigated and optimized. The optimal adsorption time of GO-PDA-PSPSH Nanocomposites toward MB was 58 min. The maximum adsorption efficiency was occurred at pH 7. On the other hand, accompanying with the elevation of temperature, removal efficiency of GO-PDA-PSPSH Nanocomposites was significantly increased, indicating that the adsorption process of MB by GO-PDA-PSPSH Nanocomposites was endothermic. More importantly, the adsorption capability of GO-PDA-PSPSH Nanocomposites was obviously greater than many other GO-Based Nanocomposites. Taken together, we have developed a facile biomimetic strategy for the preparation of GO-Based Polymer Nanocomposites, which showed excellent adsorption capability toward MB and are promising for environmental adsorption applications.

  • towards development of a versatile and efficient strategy for fabrication of go Based Polymer Nanocomposites
    Polymer Chemistry, 2015
    Co-Authors: Qing Wan, Liucheng Mao, Ke Wang, Meiying Liu, Hongye Huang, Xiaoyong Zhang, Guangjian Zeng, Yen Wei
    Abstract:

    Surface modification of graphene oxide (GO) with Polymers is of particular importance for its applications. Although much progress has been made in the surface modification of GO, the surface modification of GO with synthetic Polymers in aqueous solution has demonstrated to be problematic. In the present work, we report for the first time a versatile and effective method for the surface modification of GO with synthetic Polymers in aqueous solution taking advantage of mussel inspired chemistry. Poly(ethylene glycol) methyl ether methacrylate and itaconic anhydride (IA) monomers were chosen to prepare hydrophilic Polymers (poly(IA-co-PEGMA)) via free radical living Polymerization. These hydrophilic Polymers were further reacted with dopamine through ring-opening reaction between IA and dopamine, which could be highly efficiently attached to the GO surface via mussel inspired chemistry using dopamine as the adhesion component. The successful modification of GO with Polymers was confirmed by using a series of characterization techniques. The resulting GO–Polymer Nanocomposites displayed great dispersibility in aqueous and organic solutions, making them promising for various applications. Compared with previous methods, the biomimic strategy described in this work could facilely and effectively immobilize synthetic Polymers on GO in aqueous solution at room temperature and under an air atmosphere. More importantly, this strategy could also be utilized for the fabrication of almost any Polymer nanocomposite because of the designability and applicability of living Polymerization, and the versatility and strong adhesion of dopamine.

  • carbon nanotube Based Polymer Nanocomposites biomimic preparation and organic dye adsorption applications
    RSC Advances, 2015
    Co-Authors: Yili Xie, Leichun Liu, Liucheng Mao, Ke Wang, Qiang Huang, Meiying Liu, Qing Wan, Fengjie Deng, Hongye Huang, Xiaoyong Zhang
    Abstract:

    The development of highly efficient adsorbents for the removal of organic dyes from wastewater has attracted much attention recently. Surface modification of adsorbents with Polymers is a general strategy for enhancement of their adsorption capability. In this work, a novel strategy of a combination of mussel inspired chemistry and SET-LRP has been developed for the fabrication of highly efficient adsorbents, poly(sodium-p-styrene sulfonate) modified multi-walled carbon nanotubes (CNTs), for the first time. The adsorption applications of these CNT Based Polymer Nanocomposites for the removal of a cationic dye (methylene blue, MB) from a water solution were also examined. The successful preparation of these CNT Based Polymer Nanocomposites was confirmed by a series of characterization techniques. Furthermore, the influence of adsorption parameters including contact time, concentration of MB, adsorption temperature and time has been investigated. According to the experimental data, the adsorption capacity of MB was directly proportional to the contact time, while inversely proportional to the temperature. The maximum adsorption capacity of MB for CNT-PDA-PSPSH was 160 mg g−1, demonstrating the excellent adsorptive property of functional CNTs for MB. The method described in this work for the preparation of CNT Based Polymer Nanocomposites is simple, effective and general, and could be a universal strategy for preparation of highly efficient adsorbents for environmental applications.