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In-plane orientation and graphitizability of polyimide films: II. Film thickness dependence

โœ Scribed by H. Hatori; Y. Yamada; M. Shiraishi

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
594 KB
Volume
31
Category
Article
ISSN
0008-6223

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โœฆ Synopsis

AbstractsThe

relation between the in-plane orientation of polyimide film and graphitizability was investigated. The degree of in-plane orientation was estimated by means of optical birefringence and ESR technique. The polyimide film was found to have non-uniform orientation in the thickness direction because the thinner the film was, the greater the orientation. The inhomogeneity of orientation caused multiphase graphitization in a film with a composite profile of the X-ray diffraction peak.

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