Variation in glass transition temperature of polymer nanocomposite films driven by morphological transitions

Chandran, Sivasurender and Basu, JK and Mukhopadhyay, MK (2013) Variation in glass transition temperature of polymer nanocomposite films driven by morphological transitions. In: JOURNAL OF CHEMICAL PHYSICS, 138 (1).

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Abstract

We report the variation of glass transition temperature in supported thin films of polymer nanocomposites, consisting of polymer grafted nanoparticles embedded in a homopolymer matrix. We observe a systematic variation of the estimated glass transition temperature T-g, with the volume fraction of added polymer grafted nanoparticles. We have correlated the observed T-g variation with the underlying morphological transitions of the nanoparticle dispersion in the films. Our data also suggest the possibility of formation of a low-mobility glass or gel-like layer of nanoparticles at the interface, which could play a significant role in determining T-g of the films provided. (C) 2013 American Institute of Physics. http://dx.doi.org/10.1063/1.4773442]

Item Type:	Journal Article
Publication:	JOURNAL OF CHEMICAL PHYSICS
Publisher:	AMER INST PHYSICS
Additional Information:	Copy right for this article belongs to AMER INST PHYSICS, MELVILLE, USA
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	11 Feb 2013 11:04
Last Modified:	11 Feb 2013 11:04
URI:	http://eprints.iisc.ac.in/id/eprint/45769

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