Liquid crystalline polymers -: VI.: A study of the thermal behavior of some ternary copolyethers, containing 4,4′-dihydroxyazobenzene, bisphenol A and 1,1-bis(4-hydroxyphenyl)ethane

被引：16

作者：

Hurduc, N

Daoudi, A

Buisine, JM

Barboiu, V

Simionescu, CI

机构：

[1] Tech Univ Gh Asachi, Dept Macromol, Iasi 6600, Romania

[2] Univ Littoral, URA CNRS 801, Lab Dynam & Struct Mat Mol, F-59379 Dunkerque, France

[3] P Poni Inst Macromol Chem, Iasi 6600, Romania

来源：

EUROPEAN POLYMER JOURNAL | 1998年 / 34卷 / 01期

关键词：

D O I：

10.1016/S0014-3057(97)00025-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolyethers based on 3,3-bis(chloromethyl) oxetane and several bisphenols [4,4'-dihydroxyazobenzene, bisphenol A and 1,1-bis-(4-hydroxyphenyl)ethane] were synthesized. The influence of chain geometry and flexibility on the possible appearance of liquid crystalline behavior was investigated. Polymer properties were studied using H-1 NMR spectroscopy, DSC, optical microscopy in polarized light and theoretical conformational analyses. The optimal mesogen/nonmesogen ratios, correlated with the flexibility of the chain and anisotropic behavior was established. (C) 1997 Elsevier Science Ltd.

引用

页码：123 / 125

页数：3

共 12 条

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ALLINGER NL, 1987, QCPE B, V7, P141

[2]

BULACOVSCHI V, 1992, UKRAINIAN POLYM J, V1, P282

[3]

DAOUDI A, UNPUB

[4] PHASE-TRANSFER CATALYSIS IN THE POLYCONDENSATION PROCESSES .8. INTERNAL ROTATIONAL ENERGIES IN POLYESTERS OBTAINED FROM 3,3-BIS(CHLOROMETHYL) OXETANE AND DIPOTASSIUM ISOPHTHALATE [J].