New Clues to the Factors Governing the Perpendicular Alignment of Liquid Crystals on Rubbed Polystyrene Film Surfaces
โ Scribed by Lee, Seung Woo; Chae, Boknam; Kim, Hak Chul; Lee, Byeongdu; Choi, Wooyoung; Kim, Seung Bin; Chang, Taihyun; Ree, Moonhor
- Book ID
- 125999831
- Publisher
- American Chemical Society
- Year
- 2003
- Tongue
- English
- Weight
- 430 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0743-7463
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๐ SIMILAR VOLUMES
The surface structure of rubbed polyimides, which is responsible for the homogeneous alignment of liquid crystal molecules, was examined with use of polarized XANES spectroscopy. Our first experiment was conducted on the odd-even effect of BPDA-Cn (biphenyl-3,3',4,4'-tetracarboxylic dianhydride/n-al
New poly(m-phenylene 4,4ะ-oxydiphthalimide)s containing various side chains, such as 6-(4-biphenylmethoxy)hexyloxy group and 6-(phenylphenoxy)hexyloxy isomers, were synthesized, giving thin films of a high quality. All the polyimides apparently were almost amorphous, but exhibited short-range orderi