PREPARATION OF ORDERED AND CROSS-LINKED FILMS FROM LIQUID-CRYSTALLINE VINYL ETHER MONOMERS

被引：9

作者：

ANDERSSON, H ^{[1
]}

SAHLEN, F ^{[1
]}

GEDDE, UW ^{[1
]}

HULT, A ^{[1
]}

机构：

[1] ROYAL INST TECHNOL,DEPT POLYMER TECHNOL,S-10044 STOCKHOLM 70,SWEDEN

来源：

MACROMOLECULAR SYMPOSIA | 1994年 / 77卷

关键词：

D O I：

10.1002/masy.19940770135

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thermally stable ordered films were prepared by in-situ photopolymerization of an oriented monomer mixture, consisting of mesogenic monofunctional and bifunctional vinyl ethers. Orientation was achieved by a simple surface treatment, using an unidirectionally rubbed polyimide film. The films restored their orientation when cooled down from temperatures of 200-degrees=C. Highly ordered densely crosslinked films have been prepared by polymerization of bifunctional mesogenic vinyl ether monomers. Polymerization from various monomer phases resulted in LC polymer network films with different molecular organizations. It was shown that films with nematic, smectic A and smectic B structures were obtained, the latter having a very high degree of orientation. The films were analyzed with small-angle X-ray scattering, polarized light microscopy and infrared-dichroism measurements.

引用

页码：339 / 347

页数：9

共 19 条

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