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Study of Glass Transition of a Poly(Imide Siloxane) Copolymer Using Thermal Analysis

Published online by Cambridge University Press:  16 February 2011

L. T. Shi
L. T. Shi*
Affiliation:
IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598
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Abstract

Films of a poly(imidc siloxane) thermoplastic copolymer with a thickness of 0.5 mm have been characterized using thermal analytic techniques including DSC, TMA, and DMA. It was found that the glass transition temperature depends not only on heating rates but also on loading conditions. The mechanism of the glass transition in this copolymer is shown to involve two interconnected steps, namely volume change and phase ordering.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 215: Symposium R2 – Structure, Relaxation and Physical Aging of Glassy Polymers , 1990 , 205
Copyright
Copyright © Materials Research Society 1991

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