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Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Feb;61(2):1743-54. doi: 10.1103/physreve.61.1743.

Glass transitions and dynamics in thin polymer films: dielectric relaxation of thin films of polystyrene.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Fukao, Miyamoto

Affiliations

  1. Faculty of Integrated Human Studies, Kyoto University, Kyoto 606-8501, Japan.

PMID: 11046459 DOI: 10.1103/physreve.61.1743

Abstract

The glass transition temperature T(g) and the temperature T(alpha) corresponding to the peak in the dielectric loss due to the alpha process have been simultaneously determined as functions of film thickness d through dielectric measurements for polystyrene thin films supported on glass substrate. The dielectric loss peaks have also been investigated as functions of frequency for a given temperature. A decrease in T(g) was observed with decreasing film thickness, while T(alpha) was found to remain almost constant for d>d(c) and to decrease drastically with decreasing d for d

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