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Morphology Evolution during the Phase Separation of Polyetherimide/Epoxy Blends

✍ Scribed by Wenjun Gan; Yingfeng Yu; Minghai Wang; Qingsheng Tao; Shanjun Li

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
178 KB
Volume
24
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

The results of time‐resolved light scattering for the phase separation of epoxy/polyetherimide/anhydride blends show that the evolution of scattering vector q~m~ follows a Maxwell‐type relaxation equation. The relaxation time may be suggested as the time taken for the diffusion of the epoxy‐anhydride n‐mers from the PEI‐rich phase by their relaxation movement, and the apparent activation energy of the relaxation movement is obtained.

Values of q~m~ versus time at different temperatures.

magnified imageValues of q~m~ versus time at different temperatures.

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