Effect of nanoparticle dispersion on glass transition in thin films of polymer nanocomposites

被引：22

作者：

Chandran, S. ^{[1
]}

Basu, J. K. ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

来源：

EUROPEAN PHYSICAL JOURNAL E | 2011年 / 34卷 / 09期

关键词：

STABILIZED GOLD NANOPARTICLES; DYNAMICS;

D O I：

10.1140/epje/i2011-11099-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present spectroscopic ellipsometry measurements on thin films of polymer nanocomposites consisting of gold nanoparticles embedded in poly(styrene). The temperature dependence of thickness variation is used to estimate the glass transition temperature, T-g. In these thin films we find a significant dependence of T-g on the nature of dispersion of the embedded nanoparticles. Our work thus highlights the crucial role played by the particle polymer interface morphology in determining the glass transition in particular and thermo-mechanical properties of such nanocomposite films.

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页数：5

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