COMPARISON OF THE BEHAVIOR OF CYCLIC AND LINEAR POLYSTYRENE IN DILUTE-SOLUTION

被引：0
|
作者：
ZHANG, H
HE, ZD
机构：
来源：
POLYMER COMMUNICATIONS | 1991年 / 32卷 / 08期
关键词：
CYCLIC POLYSTYRENE; THETA-TEMPERATURE; LIGHT SCATTERING; 2ND VIRIAL COEFFICIENT;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Using a low angle laser light scattering photometer, the second virial coefficients (A2) of both cyclic and linear polystyrene were determined in cyclohexane, toluene and methyl ethyl ketone (MEK) solutions. From the data obtained in cyclohexane solution the theta-temperature of cyclic polystyrene was determined to be 30-degrees-C. In toluene solution A2 of cyclic polystyrene is smaller than that of linear polystyrene with the same molecular weight, but in MEK the values are similar.
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页码：239 / 241
页数：3
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