PARTIAL DRAINING OF LOW-MOLECULAR WEIGHT POLYMERS WITH FLEXIBLE CHAINS

被引:19
作者
BOHDANECKY, M
KOVAR, J
FORTELNY, I
机构
[1] Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences
关键词
D O I
10.1016/0032-3861(79)90115-0
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 results of the theory of intrinsic viscosity based on the model of a worm-like chain have been used in analyses of the [η]-M correlation under theta conditions, and of the Stockmayer-Fixman plot for polymers with flexible chains at molecular weights M < 105. Their viscosity behaviour appears to be influenced by the chain thickness d. An analysis of the available data allowed us to obtain reasonable d values for several polymers: polyethylene; poly(ethylene oxide); polystyrene; poly(methyl methacrylate), and poly(vinyl acetate). The effect of solvent on d was ascertained. The analysis shows that the reliability of the results obtained by the Stockmayer-Fixman method is the higher, the larger the proportion of data used which reside in the region M > 105. © 1979.
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页码:813 / 817
页数:5
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