SOLUTION CHARACTERIZATION OF HIGH-MOLECULAR-WEIGHT POLYACRYLONITRILE OBTAINED BY PLASMA-INDUCED POLYMERIZATION

被引:15
作者
SIMIONESCU, BC
IOAN, S
BERCEA, M
SIMIONESCU, CI
机构
[1] INST POLYTECH GHEORGHE ASACHI,DEPT ORGAN & MACROMOLEC,R-6600 IASI,ROMANIA
[2] PETRU PONI INST MACROMOLEC CHEM,R-6600 IASI,ROMANIA
关键词
D O I
10.1016/0014-3057(91)90182-N
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 behaviour of high molecular weight polyacrylonitrile, prepared by plasma-induced polymerization, in dilute solution in dimethylformamide was investigated by light scattering and viscometry. The dependence of the radius of gyration and of the second virial coefficient at 20-degrees-C and of the intrinsic viscosity at 15-50-degrees-C on the weight-average molecular weight of polymer was established. There is discussion of the possible appearance during the polymerization of branched structures, able to influence the mentioned dependencies.
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页码:553 / 556
页数:4
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