SYNTHESIS AND STRUCTURE-PROPERTY RELATIONSHIPS OF PROCESSABLE LIQUID-CRYSTALLINE POLYMERS WITH ARYLENEVINYLENE SEGMENTS IN THE MAIN-CHAIN FOR LIGHT-EMITTING APPLICATIONS

被引：35

作者：

OBERSKI, J

FESTAG, R

SCHMIDT, C

LUSSEM, G

WENDORFF, JH

GREINER, A

HOPMEIER, M

MOTAMEDI, F

机构：

[1] UNIV MARBURG,FACHBEREICH PHYS CHEM,POLYMERE & WISSENSCH ZENTRUM F MAT WISSENSCH,W-3550 MARBURG,GERMANY

[2] UNIV MARBURG,FB PHYS,D-35032 MARBURG,GERMANY

[3] UNIV CALIF SANTA BARBARA,DEPT MAT,SANTA BARBARA,CA 93106

来源：

MACROMOLECULES | 1995年 / 28卷 / 25期

关键词：

D O I：

10.1021/ma00129a029

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polymers were synthesized with modified trans-bis(styryl)benzene segments in the main polycondensation of OH-functionalized oligo(arylenevinylenes) and aliphatic diacid chlorides. Most of the visible light emitting polymers were soluble at room temperature and fusible below the range of decomposition. The formation of a smectic A phase was observed in the melt state. Isotropization temperatures of polymers with phenyl-substituted arylenvinylene segments were detected below 200 degrees C. A remarkable thermal stability in the melt state with respect to cross-linking was observed for polymers containing CF3-substituted arylenevinylene segments. The polymers were investigated by spectroscopic methods, thermogravimetrical analysis, differential scanning calorimetry, polarizing microscopy, wide angle X-ray scattering, small angle X-ray scattering, dielectric relaxation spectroscopy, and by stress-strain experiments.

引用

页码：8676 / 8682

页数：7

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