Journal ArticleDOI
Synthesis and barrier properties of poly(ε‐caprolactone)‐layered silicate nanocomposites
Reads0
Chats0
TLDR
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
Citations
More filters
Book ChapterDOI
New Aliphatic Polyester Layered-Silicate Nanocomposites
TL;DR: In this domain, aliphatic polyesters play a key-role and exhibit many advantages in comparison to commodity plastics such as for instance polyolefins as discussed by the authors, which is the reason why their after-use valorisation draws more and more attention from scientists and industrials.
Journal ArticleDOI
Influence of nanoclays on mechanical and barrier properties of hydrogenated acrylonitrile butadiene rubber nanocomposites
R M Cadambi,E Ghassemieh +1 more
TL;DR: In this article, two different methods have been investigated for optimising the preparation of hydrogenated acrylonitrile butadiene rubber/clay nanocomposites, and the influence of organoclays on permeability has been studied.
Journal ArticleDOI
Preparation of NBR/Expanded Graphite Nanocomposites by Simple Mixing:
TL;DR: In this paper, the expanded graphite (EG) was first sonicated for 10 minutes, before being mixed with the NBR, and then it was sonicated again for another 10 minutes.
Journal ArticleDOI
Poly(L-lysine) and Clay Nanocomposite with Desired Matrix Secondary Structure: Effects of Polypeptide Molecular Weight
Rohan A. Hule,Darrin J. Pochan +1 more
TL;DR: In this paper, the secondary structure of PLL was controllably altered into {alpha}-helical, {beta}-sheet, and random coil by varying solution conditions such as pH, temperature, and polypeptide concentration.
Book ChapterDOI
Permeability in Clay/Polyesters Nano-Biocomposites
TL;DR: In this article, the barrier properties of nanocomposite of biodegradable polyesters with layered inorganic fillers are investigated and the effect of lamellar fillers on the water permeability is discussed.