LIGHT-SCATTERING BEHAVIOR OF SEMIDILUTE SOLUTIONS OF POLYACRYLAMIDE

被引:11
作者
MEDJAHDI, G [1 ]
SARAZIN, D [1 ]
FRANCOIS, J [1 ]
机构
[1] UNIV STRASBOURG 1, CNRS, INST CHARLES SADRON, F-67083 STRASBOURG, FRANCE
关键词
D O I
10.1016/0014-3057(90)90136-R
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 angular dependence of light scattered by aqueous semi-dilute solutions of unhydrolysed polyacrylamide has been systematically measured as a function of polymer molecular weight, concentration, temperature and time. The behaviour is similar to those already described for other systems of polymer-solvent in the same concentration regime and exhibit a high excess of intensity in the small angle range. These effects are attributed to macromolecule association due to a long range attractive potential; a new expression for the angular dependence of the scattered intensity is developed, taking into account this potential. © 1990.
引用
收藏
页码:823 / 829
页数:7
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