PHOTOINITIATED CROSS-LINKING OF HYDROXYPROPYL CELLULOSE IN THE ISOTROPIC AND LIQUID-CRYSTAL STATES

被引：18

作者：

SONG, CQ ^{[1
]}

LITT, MH ^{[1
]}

MANAS-ZLOCZOWER, I ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV, DEPT MACROMOLEC SCI, CLEVELAND, OH 44106 USA

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 42卷 / 09期

关键词：

D O I：

10.1002/app.1991.070420917

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The influence of temperature, concentration, and shear rate on the formation of liquid crystal solutions of hydroxypropyl cellulose (HPC) in DMAc and the preservation of the structure by photoinitiated crosslinking were investigated. The rate of changes in the relaxation pattern for the characteristic band texture of HPC liquid crystals after cessation of shear is inversely proportional to the extent of the crosslinking. This shows that the liquid crystalline structure is preserved upon crosslinking. The molecular orientation of the crosslinked films as a function of mesophase organization and concentration during crosslinking was studied.

引用

页码：2517 / 2523

页数：7

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