Journal ArticleDOI
Synthesis and barrier properties of poly(ε‐caprolactone)‐layered silicate nanocomposites
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In this article, a polymer-ceramic nanocomposite was synthesized consisting of well-dispersed, two-dimensional layers of an organically modified mica-type silicate (MTS) within a degradable poly(e-caprolactone) matrix.Abstract:
A new polymer-ceramic nanocomposite has been synthesized consisting of well-dispersed, two-dimensional layers of an organically modified mica-type silicate (MTS) within a degradable poly(e-caprolactone) matrix. A protonated amino acid derivative of MTS was used to promote delamination/dispersion of the host layers and initiate ring-opening polymerization of e-caprolactone monomer, resulting in poly(e-caprolactone) chains that are ionically bound to the silicate layers. The polymer chains can be released from the silicate surface by a reverse ion-exchange reaction and were shown to be spectroscopically similar to pure poly(e-caprolactone). Thick films of the polymer nanocomposite exhibit a significant reduction in water vapor permeability that shows a linear dependence on silicate content. The permeability of nanocomposite containing as low as 4.8% silicate by volume was reduced by nearly an order of magnitude compared to pure poly(e-caprolactone)read more
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Preparation and Characterization of Elastomer-Based Nanocomposite Gels Using an Unique Latex Blending Technique
TL;DR: In this article, a mixture of Na+-MMT and styrene butadiene rubber (SBR) was used to improve the physical, mechanical and thermal properties of nanocomposite (NC) gels by first blending the water swollen unmodified montmorillonite clay (Na+MMT) suspension into the respective latices followed by prevulcanization to generate crosslinked nanogels.
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Hierarchical structure and crystal orientation in poly(ethylene oxide)/clay nanocomposite films.
Che-Yi Chu,Meng-Hsin Chen,Mei-Lin Wu,Hsin-Lung Chen,Yu-Tsung Chiu,Shih-Ming Chen,Chiung-Hui Huang +6 more
TL;DR: Water-cast nanocomposite films formed by poly(ethylene oxide) (PEO) and Laponite clay were found to display three characteristic levels of structure with large-scale orientation, which were ascribed to the confinement effect imposed by the clay bundles to the crystallization of the PEO chains situating in the interbundle region.
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Biodegradable blends of stereocomplex polylactide and lignin by supercritical carbon dioxide-solvent system
TL;DR: In this paper, the combination of stereocomplex polylactide and lignin was successfully generated through a supercritical carbon dioxide -solventing system, where the solvation power of organic solvent to the poly lactide is the key factor to obtain homogeneous blends.
Journal ArticleDOI
Thermal, tensile and rheological properties of dynamically cross-linked organoclay filled poly(ethylene-co-vinyl acetate)/acrylonitrile-butadiene rubber nanocomposites: Effect of peroxide content
TL;DR: In this article, the x-ray diffraction and transmission electron microscopy results showed that the extent of exfoliation of the organoclay (OC) layers increased with the addition of DCP.
Journal ArticleDOI
Nylon 10 10–montmorillonite nanocomposite made by intercalating polymerization
TL;DR: In this paper, the nanocomposite was investigated by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Atom force microscopy (AFM), Scanning electron microscopy(SEM), Thermogravimetric analysis (TGA), Differential scanning calorimeter (DSC), and Dynamic mechanical analysis (DMA).