LIQUID-CRYSTALLINE SIDE-GROUP POLYESTERS WITH DEFINITE LENGTHS OF THE MAIN-CHAIN SPACERS

被引：0
|
作者：
BOHME, A [1 ]
LINDAU, J [1 ]
ROTZ, U [1 ]
HOFFMANN, F [1 ]
FISCHER, H [1 ]
DIELE, S [1 ]
KUSCHEL, F [1 ]
机构：
[1] MARTIN LUTHER UNIV,FACHBEREICH CHEM,MUHLPFORTE 1,O-4010 HALLE,GERMANY
来源：
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS | 1992年 / 193卷 / 10期
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D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
New liquid-crystalline polyesters 1 with 4-(phenylazo)azobenzene moities as mesogenic side groups and a polyester backbone structure characterized by a systematic variation of the length of the flexible non-mesogenic main-chain segments were synthesized. The polyesters were investigated by differential scanning calorimetry, polarizing microscopy, miscibility studies and X-ray diffraction. With increasing number of methylene groups in the backbone spacer, the thermal stability of the nematic and/or smectic phases first decreases and then increases.
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页码：2581 / 2588
页数：8
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