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1-Naphthylamine

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S. Marghoob Ashraf – 1st expert on this subject based on the ideXlab platform

  • Template polymerization of nano-scale poly(1-Naphthylamine): Effect of oxidant on the spectral, thermal and morphological characteristics
    Designed Monomers and Polymers, 2008
    Co-Authors: Uffana Riaz, Sharif Ahmad, S. Marghoob Ashraf

    Abstract:

    For the first time the template synthesis of nano-scale poly(1-Naphthylamine) is reported in CSA micellar medium using benzoyl peroxide, ammonium persulphate and potassium dichromate as oxidants. The nanopolymers were characterized by FT-IR, UV-Vis, DSC, TGA, XRD, DLS, as well as SEM techniques. IR spectral investigations revealed the polymerization of 1-Naphthylamine through N-C(5) linkages. The UV studies revealed the differences in the chain conformation of the polymers and their polaronic states. The nanosize of the conducting polymers was analyzed by SEM. DLS analysis showed that the particle size of the polymer prepared using the three oxidants varied between 115 and 117 nm. SEM showed that particle size of the three polymers varied between 100 and 312 run. XRD, as well as DSC analyses confirmed partial crystallinity of these polymers. Conductivity was found to be in the range of 10(-3) to 10(-2) S/cm, which could be correlated to the conformation of the polymeric chains and delocalization of polarons. The nanopolymers were found to be thermally stable up to 400 degrees C. (c) Koninklijke Brill NV, Leiden, 2008.

  • Effect of Dopant on the Nanostructured Morphology of Poly (1-Naphthylamine) Synthesized by Template Free Method
    Nanoscale Research Letters, 2007
    Co-Authors: Ufana Riaz, Sharif Ahmad, S. Marghoob Ashraf

    Abstract:

    The study reports some preliminary investigations on the template free synthesis of ascantly investigated polyaniline (PANI) derivative—poly (1-Naphthylamine) (PNA) by template free method in presence as well as absence of hydrochloric acid (HCl) (dopant), using ferric chloride as oxidant. The polymerization was carried out in alcoholic medium. Polymerization of 1-Naphthylamine (NPA) was confirmed by the FT-IR as well as UV–visible studies. The morphology and size of PNA particles was strongly influenced by the presence and absence of acid which was confirmed by transmission electron microscopy (TEM) studies.

Sharif Ahmad – 2nd expert on this subject based on the ideXlab platform

  • Template Polymerization of Nano-Scale Poly(1-Naphthylamine): Effect of Oxidant on the Spectral, Thermal and Morphological Characteristics
    Designed Monomers and Polymers, 2020
    Co-Authors: Uffana Riaz, Sharif Ahmad, S. M. Ashraf

    Abstract:

    For the first time the template synthesis of nano-scale poly(1-Naphthylamine) is reported in CSA micellar medium using benzoyl peroxide, ammonium persulphate and potassium dichromate as oxidants. The nanopolymers were characterized by FT-IR, UV-Vis, DSC, TGA, XRD, DLS, as well as SEM techniques. IR spectral investigations revealed the polymerization of 1-Naphthylamine through N–C(5) linkages. The UV studies revealed the differences in the chain conformation of the polymers and their polaronic states. The nanosize of the conducting polymers was analyzed by SEM. DLS analysis showed that the particle size of the polymer prepared using the three oxidants varied between 115 and 117 nm. SEM showed that particle size of the three polymers varied between 100 and 312 nm. XRD, as well as DSC analyses confirmed partial crystallinity of these polymers. Conductivity was found to be in the range of 10–3 to 10–2 S/cm, which could be correlated to the conformation of the polymeric chains and delocalization of polarons. T…

  • Evaluation of antibacterial activity of nanostructured poly(1 -naphthylamine) and its composites
    Journal of Biomaterials Science-polymer Edition, 2020
    Co-Authors: Ufana Riaz, Sharif Ahmad, Shahanavaj Khan, Mohd. Islam, S. M. Ashraf

    Abstract:

    The present study reports some preliminary investigations on the antibacterial activity of nanostructured poly(1-Naphthylamine) (PNA) and its composites with polyvinyl alcohol (PVA) and polyvinylchloride (PVC). The antibacterial activity was evaluated against Escherichia coli and Staphylococcus aureus. The particle size and morphology of PNA and its composites was found to play a significant role in deciding the antimicrobial efficiency. A mechanism of antimicrobial activity has been suggested.

  • Copolymerization of poly(1‐naphthylamine) with aniline and o‐toluidine
    Journal of Applied Polymer Science, 2008
    Co-Authors: Ufana Riaz, Sharif Ahmad, Reshma Jahan, S. M. Ashraf

    Abstract:

    The commercial use of polyaniline has been impeded by its intractable nature and insolubility. The use of substituted polyaniline has been attempted mainly to increase the processibility of polyaniline, but this approach usually results in the lowering of the conductivity. This study reports the synthesis of poly(1-Naphthylamine), a fused ring derivative of polyaniline, and its copolymers with aniline and o-toluidine via a chemical polymerization method. Spectral, thermal, morphological, and conductivity studies were carried out to elucidate the influence of the incorporation of aniline and o-toluidine units into poly(1-Naphthylamine). © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008

S. M. Ashraf – 3rd expert on this subject based on the ideXlab platform

  • Template Polymerization of Nano-Scale Poly(1-Naphthylamine): Effect of Oxidant on the Spectral, Thermal and Morphological Characteristics
    Designed Monomers and Polymers, 2020
    Co-Authors: Uffana Riaz, Sharif Ahmad, S. M. Ashraf

    Abstract:

    For the first time the template synthesis of nano-scale poly(1-Naphthylamine) is reported in CSA micellar medium using benzoyl peroxide, ammonium persulphate and potassium dichromate as oxidants. The nanopolymers were characterized by FT-IR, UV-Vis, DSC, TGA, XRD, DLS, as well as SEM techniques. IR spectral investigations revealed the polymerization of 1-Naphthylamine through N–C(5) linkages. The UV studies revealed the differences in the chain conformation of the polymers and their polaronic states. The nanosize of the conducting polymers was analyzed by SEM. DLS analysis showed that the particle size of the polymer prepared using the three oxidants varied between 115 and 117 nm. SEM showed that particle size of the three polymers varied between 100 and 312 nm. XRD, as well as DSC analyses confirmed partial crystallinity of these polymers. Conductivity was found to be in the range of 10–3 to 10–2 S/cm, which could be correlated to the conformation of the polymeric chains and delocalization of polarons. T…

  • Evaluation of antibacterial activity of nanostructured poly(1 -naphthylamine) and its composites
    Journal of Biomaterials Science-polymer Edition, 2020
    Co-Authors: Ufana Riaz, Sharif Ahmad, Shahanavaj Khan, Mohd. Islam, S. M. Ashraf

    Abstract:

    The present study reports some preliminary investigations on the antibacterial activity of nanostructured poly(1-Naphthylamine) (PNA) and its composites with polyvinyl alcohol (PVA) and polyvinylchloride (PVC). The antibacterial activity was evaluated against Escherichia coli and Staphylococcus aureus. The particle size and morphology of PNA and its composites was found to play a significant role in deciding the antimicrobial efficiency. A mechanism of antimicrobial activity has been suggested.

  • A short review on the synthesis, characterization, and application studies of poly(1-Naphthylamine): a seldom explored polyaniline derivative
    Colloid and Polymer Science, 2017
    Co-Authors: Sapana Jadoun, S. M. Ashraf, Anurakshee Verma, Ufana Riaz

    Abstract:

    Poly(1-Naphthylamine) (PNA) has been one of the seldom explored polyaniline (PANI) derivatives in spite of its versatile electrochromic and optoelectronic properties. The present review summarizes, for the first time, synthesis, characterization, and application studies related to poly(1-Naphthylamine) as well as its copolymers, blends, and nanocomposites that have been carried out during the past two decades. Details about the chemical as well as electrochemical techniques used for the synthesis of this polymer are provided along with various procedures adopted to improve its processibility via formulation of copolymers, blends, and nanocomposites. Recent studies dealing with the potential applications of this polymer in the field of catalysis and coatings are also evaluated.