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New liquid-crystal alignment agents based on fluorinated polyimides with trifluoromethyl-substituted benzene or diphenylether in the side chain
Liu, JG; Li, ZX; Wu, JT; Zhou, HW; Wang, FS; Yang, SY
2002-05-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume40Issue:10Pages:1583-1593
AbstractFluorinated copolyimides derived from 4,4'-oxydiphthalic anhydride (ODPA) with 4,4'-oxydianline (ODA) and trifluoromethyl-containing aromatic diamines have been synthesized and characterized. The trifluoromethyl-containing diamines include 2,4-diamino-3'-trifluoromethylazobenzene, 2,4-diamino-1-[(4'-trifluoromethylphenoxy) phenyl] aniline, 3,5-diamino-1-[(4'-trifluoromethylphenoxy) phenyl] benzamide, 3,5-diamino-1-[(3'-trifluoromethyl) phenyl] benzamide, 1,4-bis(4'-aminophenoxy)-2-(3'-trifluoromethylphenyl) benzene, 3,5-diaminobenzenetrifluoride, 4,4'-diamino-4"-(p-trifluoromethyl phenoxy) triphenylamine, and 4-[(4'-trifluoromethylphenoxy) phenyl]-2,6-bis(4"-aminophenyl)pyridine. Strong and flexible copolyimide films, produced by casting the polyamic acid solution followed by thermal imidization, exhibited great thermal stability and high mechanical properties. The polyimides had an ultraviolet-visible absorption cutoff at 330-340 nm and pretilt angles as high as 20degrees for nematic liquid crystals, making them great potential candidates for advanced liquid-crystal display applications. (C) 2002 Wiley Periodicals, Inc.
KeywordFluorinated Copolyimide Alignment Films Thermal Properties Liquid-crystal Display (Lcd) Pretilt Angle Transparency
DOI10.1002/pola.10239
Indexed BySCI
Language英语
WOS IDWOS:000175073600021
PublisherJOHN WILEY & SONS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78622
Collection中国科学院化学研究所
Corresponding AuthorYang, SY
AffiliationChinese Acad Sci, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Liu, JG,Li, ZX,Wu, JT,et al. New liquid-crystal alignment agents based on fluorinated polyimides with trifluoromethyl-substituted benzene or diphenylether in the side chain[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2002,40(10):1583-1593.
APA Liu, JG,Li, ZX,Wu, JT,Zhou, HW,Wang, FS,&Yang, SY.(2002).New liquid-crystal alignment agents based on fluorinated polyimides with trifluoromethyl-substituted benzene or diphenylether in the side chain.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,40(10),1583-1593.
MLA Liu, JG,et al."New liquid-crystal alignment agents based on fluorinated polyimides with trifluoromethyl-substituted benzene or diphenylether in the side chain".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 40.10(2002):1583-1593.
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