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Size Effects on Miscibility and Glass Transition Temperature of PS/TMPC Blend Films: a Simulation and Thermodynamic Approach

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Abstract:

The size dependent miscibility of binary polymer blend films of polystyrene (PS) and tetramethylbisphenol-A polycarbonate (TMPC) is studied by the molecular dynamics (MD) simulation in the way of computing Flory-Huggins interaction parameter, χ, of the blend films, which determines the blend films compatibility. It is found that the miscibility of the two polymers decreases as the film thickness D decreases. After that, the size dependent glass transition temperature Tg(w,D) of the two polymers blend films in miscible ranges are determined by computer simulation and the Fox equation where w is the weight fraction of the second component.

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Periodical:

Key Engineering Materials (Volumes 334-335)

Pages:

105-108

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.334-335.105

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Online since:

March 2007

Authors:

Zhi Min Ao, Qing Jiang

Keywords:

Molecular Dynamic (MD), Polymer Blend, Thermodynamic

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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