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Issue 18, 2010
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Glass transition temperature changes of melt-blended polymer nanocomposites containing finely dispersed ZnO quantum dots

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Abstract

We report the linear increase in the glass transition temperature, Tg, with nanofiller weight content. ZnO quantum dots dispersed by melt-blending in a poly(methyl methacrylate) host were characterized by differential scanning calorimetry and dynamic mechanical analysis showing that the Tg of the system is described by a power law of the interparticle distance, hp, where the percolation exponent, ν, was 0.55 to 0.64. Our analysis demonstrates that the characteristic length of the polymer in PNCs is in the range of 0.41–0.90 nm. Our results suggest that polymer nanocomposites can be described by the quantitative models of polymer thin films.

Graphical abstract: Glass transition temperature changes of melt-blended polymer nanocomposites containing finely dispersed ZnO quantum dots

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Publication details

The article was received on 23 Dec 2009, accepted on 07 Jul 2010 and first published on 06 Aug 2010


Article type: Paper
DOI: 10.1039/B927182A
Citation: Soft Matter, 2010,6, 4482-4490
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    Glass transition temperature changes of melt-blended polymer nanocomposites containing finely dispersed ZnO quantum dots

    M. Wong, R. Tsuji, S. Nutt and H. Sue, Soft Matter, 2010, 6, 4482
    DOI: 10.1039/B927182A

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