Orientation of Crystalline and Non-crystalline PMDA-ODA Polymers at Rubbed Film Surface

Ichiro HIROSAWA; Tomoyuki KOGANEZAWA; Hidenorii ISHII

doi:10.1587/transele.E95.C.1749

IEICE Transactions on Electronics

Online ISSN : 1745-1353
Print ISSN : 0916-8524

Special Section on Electronic Displays

Orientation of Crystalline and Non-crystalline PMDA-ODA Polymers at Rubbed Film Surface

Ichiro HIROSAWA, Tomoyuki KOGANEZAWA, Hidenorii ISHII

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Keywords: rubbing, grazing-incidence X-ray diffraction, polyimide, alignment film, LCD

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2012 Volume E95.C Issue 11 Pages 1749-1751

DOI https://doi.org/10.1587/transele.E95.C.1749

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Abstract

Grazing incidence X-ray diffraction experiment proved that the a- and c-axes of PMDA-ODA crystals preferentially aligned in normal and parallel directions to rubbing at surface of rubbed film, and that polymer chains of residual amorphous phase aligned in rubbing direction.

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