FORMATION AND CHARACTERIZATION OF CELLULOSE FILMS FROM A LIQUID-CRYSTALLINE SOLUTION OF CELLULOSE IN AMMONIA AMMONIUM THIOCYANATE

被引：4
|
作者：
CHEN, YS [1 ]
YANG, KS [1 ]
CUCULO, JA [1 ]
机构：
[1] N CAROLINA STATE UNIV,COLL TEXT,FIBER & POLYMER SCI PROGRAM,RALEIGH,NC 27695
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 1990年 / 41卷 / 3-4期
关键词：
D O I：
10.1002/app.1990.070410310
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Films were cast from liquid crystalline solutions of cellulose in an ammonia (NH3)/ammonium thiocyanate (NH4SCN) solvent. Microscopic examination of the cellulose liquid crystalline solutions used for the film formation exhibited the so‐called conjugated phase. It displayed a fingerprint and a uniformly dispersed highly birefringent pattern. Without additives, the films made from these liquid crystalline solutions are clear, flexible, and have high strength comparable to commercial Cellophone® films. The infrared crystallinity index of the film was somewhat higher than that of other cellulose II materials. Copyright © 1990 John Wiley & Sons, Inc.
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页码：587 / 594
页数：8
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