Colorless polyimides derived from isomeric dicyclohexyl-tetracarboxylic dianhydrides for optoelectronic applications

doi:10.1016/j.polymer.2017.11.042

CORC > 化学研究所 > 中国科学院化学研究所

	Colorless polyimides derived from isomeric dicyclohexyl-tetracarboxylic dianhydrides for optoelectronic applications
	Hu, Xiaofan 1,2; Mu, Hongliang 1; Wang, Yongxia 1; Wang, Zhen 1,3; Yan, Jingling 1
刊名	POLYMER
	2018-01-03
卷号	134 页码:8-19
关键词	Isomeric Dicyclohexyl-tetracarboxylic Dianhydrides Alicyclic Polyimides Isomer Effect
ISSN号	0032-3861
DOI	10.1016/j.polymer.2017.11.042
英文摘要	Two isomers of conventional cis-dicyclohexyl-3,3',4,4'-tetracarboxylic dianhydride (4,4'-HBPDA), i.e. dicyclohexyl-2,3',3,4'-tetracarboxylic dianhydride (3,4'-HBPDA) and dicyclohexyl-2,2',3,3'-tetracarboxylic dianhydride (3,3'-HBPDA), were prepared through a four-step procedure. The data from single crystal X-ray diffraction revealed that 3,3'-HBPDA possessed higher structural rigidity/linearity than 4,4'-HBPDA. The one-step polycondensation of isomeric HBPDAs with commercial diamines enabled the synthesis of alicyclic polyimides. The isomer effects of the dianhydrides on the properties of resulting polyimides were studied in detail. For certain diamines, 3,3'-HBPDA-derived polyimides possessed higher glass transition temperatures (Tg) and better dimensional stability compared with those from 4,4'-HBPDA and 3,4'-HBPDA. These phenomena could be attributed to the higher structural rigidity/linearity of 3,3'-dicyclohexyl-tetracarboxydiimide, and restricted rotation of 3-substituted cyclohexylimide. Owing to the asymmetric structures and suppressed rotation of 3-substituted cyclohexylimides, 3,4'-HBPDA-based polymers exhibited higher Tg, improved dimensional stability, and enhanced solubility compared with 4,4'-HBPDA-based ones. Furthermore, all the isomeric HBPDA-derived polyimides were essentially colorless with excellent optical transparency in the UV-Visible region. The excellent overall properties of polyimides from 3,3'-HBPDA and 3,4'-HBPDA made them promising candidate materials for optoelectronic applications. (C) 2017 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000418581800002
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45189]
专题	中国科学院化学研究所
通讯作者	Yan, Jingling
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, Lab Polymer Composites Engn, Changchun, Jilin, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Hu, Xiaofan,Mu, Hongliang,Wang, Yongxia,et al. Colorless polyimides derived from isomeric dicyclohexyl-tetracarboxylic dianhydrides for optoelectronic applications[J]. POLYMER,2018,134:8-19.
APA	Hu, Xiaofan,Mu, Hongliang,Wang, Yongxia,Wang, Zhen,&Yan, Jingling.(2018).Colorless polyimides derived from isomeric dicyclohexyl-tetracarboxylic dianhydrides for optoelectronic applications.POLYMER,134,8-19.
MLA	Hu, Xiaofan,et al."Colorless polyimides derived from isomeric dicyclohexyl-tetracarboxylic dianhydrides for optoelectronic applications".POLYMER 134(2018):8-19.