LIQUID-CRYSTALLINE POLYIMIDES

被引：17
|
作者：
KRICHELDORF, HR
机构：
[1] Institut för Technische, Makromolekulare Chemie der Universität, D-20146 Hamburg, FRG
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1994年 / 254卷
关键词：
D O I：
10.1080/10587259408036072
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
This paper presents a short review of liquid-crystalline (LC)polyimides. It is shown that it is difficult to obtain LC-polyimides free of ester groups. Only three examples of such polyimides have been found so far. LC-Poly(ester-imide)s may be subdivided into two groups. The first groups contains aliphatic spacers in the main chain and possesses a high tendency of forming layer structures in the solid state. The origin of the layer structures is discussed. The second group conprises poly(ester-imide)s with a fully aromatic main chain. The role of substituents, conformations and donor-acceptor interactions for the stabilization of nematic phases is discussed.
引用
收藏
页码：87 / 108
页数：22
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