The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform

Benny D. Freeman - One of the best experts on this subject based on the ideXlab platform.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David F. Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading. © 2007 Elsevier B.V. All rights reserved.

Scott Matteucci - One of the best experts on this subject based on the ideXlab platform.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David F. Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading. © 2007 Elsevier B.V. All rights reserved.

Steve Swinnea - One of the best experts on this subject based on the ideXlab platform.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David F. Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading. © 2007 Elsevier B.V. All rights reserved.

Victor A. Kusuma - One of the best experts on this subject based on the ideXlab platform.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David F. Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading. © 2007 Elsevier B.V. All rights reserved.

David Sanders - One of the best experts on this subject based on the ideXlab platform.

  • Gas transport in TiO2 nanoparticle-filled poly(1-trimethylsilyl-1-propyne)
    Journal of Membrane Science, 2008
    Co-Authors: Scott Matteucci, Victor A. Kusuma, Steve Swinnea, David Sanders, Benny D. Freeman
    Abstract:

    Titanium dioxide (TiO2) nanoparticles were dispersed via solution processing in poly(1-trimethylsilyl-1-propyne) (PTMSP) to form nanoComposite films. Nanoparticle dispersion was investigated using atomic force microscopy and transmission electron microscopy. At low-particle loadings, nanoparticles were dispersed individually and in nanoscale aggregates. At high-particle loadings, some nanoparticles formed micron-sized aggregates. The gas transport and Density exhibited a strong dependence on nanoparticle loading. At low-TiO2 loadings, the Composite Density was similar to or slightly higher than that predicted by a two-phase additive model. However, at particle loadings exceeding approximately 7 nominal vol.%, the Density was markedly lower than predicted, suggesting that the particles induced the creation of void space within the nanoComposite. For example, when the TiO2 nominal volume fraction was 0.35, the polymer/particle Composite Density was 40% lower than expected based on a two-phase additive model for Density. At low-nanoparticle loading, light gas permeability was lower than that of the unfilled polymer. At higher nanoparticle loadings, light gas permeability (i.e., CO2, N2, and CH4) increased to more than four times higher than in unfilled PTMSP. At most, selectivity changed only slightly with particle loading. © 2007 Elsevier B.V. All rights reserved.