EFFECTS OF THE DEGREE OF SUBSTITUTION ON THE OPTICAL AND ELECTRICAL-PROPERTIES OF CELLULOSE DIPHENYLACETOACETATE AND ACETOCINNAMATE IN DIOXANE

被引：0
作者：
TSVETKOV, NV
MARCHENKO, GN
BEZRUKOVA, MA
DIDENKO, SA
DENISOV, VM
KHRIPUNOV, AN
LEZOV, AV
TSVETKOV, VN
机构：
来源：
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B | 1993年 / 35卷 / 03期
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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 dynamic birefringence and equilibrium and nonequilibrium electric birefringences in dioxane solutions of two cellulose esters, diphenylacetoacetate and acetocinnamate, were studied. The optical shear coefficient DELTAn/DELTAtau and the Kerr constant K of the polymers were found to vary sharply upon changing the degree of their substitution gamma1 with respect to the phenyl-containing radical. The longitudinal component of the dipole moment of a monomer unit mu0 parallel-to, calculated as a function of gamma1, exhibited nonlinear behavior.
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页码：A303 / A308
页数：6
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