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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Effects of Rubber—Filler Interaction on the Developments of Physical, Mechanical, and Interfacial Properties of Vamac—Silica Nano-composites
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Preparation and Characterization of Organoclay-Filled, Vinyl Ester-Modified Unsaturated Polyester Nanocomposites
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Controlling the structure and rheology of polyimide/nanoclay composites by condensation polymerization
Jia Wang,Jude O. Iroh,Amy Long +2 more
TL;DR: In this paper, a novel in situ condensation polymerization method for controlling the structure and dispersion of clay in the polyimide (PI) matrix has been investigated, and the results showed that the viscosity of the polymerizing poly(amic acid) (PAA) solution increases rapidly with increasing shear rate and polymerization time.
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Alkyd‐clay nanocomposites for improved anticorrosion and mechanical performance of coating
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Impact Resistance Behavior of Polymer Nanocomposite Transparent Panels
K. N. Rai,Dhananjay Singh +1 more
TL;DR: In this article, the functional form of impact resistance (tolerance), with number of sheets, n, in each panel as represented by R= At2n - Btn + C (with tn = nt, t being unit sheet thickness), has been assigned with appropriate physical processes responsible for failure.