摘要
乙基氰乙基纤维素/甲基丙烯酸酯在一定的浓度下可以形成溶致性液晶,从液晶相的双折射纹理结构和小角光散射的H_v散射花样可知这类液晶是胆甾型的。同时,在液晶相开始出现时及各向同性完全消失时的临界浓度C_1~*和C_2~*均随着甲基丙烯酸酯基的链的增长而减少。
Ethyl-cyanoethyl cellulose could iorm lyotropic liquid crystals in many organic solvents. The liquid crystalline solutions of ethyl-cyanoethyl cellulose/methacrylates were studied by means of Abbe',refractomcter',polarized light microscope,small angle light scattering.For the ethyl cyanoethyl cellulose/methyl methacrylate solution, the critical concentrations of Cf is about 0.380g/g and C2* is about 0.435g/g, for the ethyl-cyanoethyl cellulose/ethylmethacrylate solution,Cf is about 0.355g/g and Cf is about 0.420g/g, and for the ethylcyanoethyl cellulose/butyl methacrylate solution, Cf is about 0.335g/g and Cf is about 0.405g/g.Polarized light micrographs and SALS Hv patterns indicated that the liquid crystals of ethyl-cyanoethyl cellulose/methacrylates were cholesteric.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1991年第5期52-54,共3页
Polymer Materials Science & Engineering
关键词
纤维素
液晶
溶液
甲基丙烯酸酯
ethyl-cyanoethyl cellulose/methacrylates, lyotropic liquid crystals.
