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Surface morphology of photo-crosslinkable polyimide after irradiation of polarized UV light
- Issue Date
- 1999
- Publisher
- GORDON BREACH PUBLISHING, TAYLOR & FRANCIS GROUP
- Keywords
- polyimide; photo-crosslink; surface morphology
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.327, pp.41 - 44
- Journal Title
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
- Volume
- 327
- Start Page
- 41
- End Page
- 44
- ISSN
- 1058-725X
- Abstract
- Photo-crosslinkable polyimide(PI) which contains CF(3) moiety was synthesized. Polarized UV light transformed ketone group of PI to hydroxyl group, which was confirmed by IR and UV-visible spectroscopy. We investigated the dichroic UV-absorption before and after photo-reaction with linearly polarized light. The grooves were formed on the surface of PI film after irradiation with polarized UV-light. It was interesting to observe that the alignment of grooves was perpendicular to the polarized director, while the orientation of LC was parallel to the groove alignment.
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Collections - College of Engineering > Chemical Engineering Major > 1. Journal Articles
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