ULTRASONIC AND RHEOLOGICAL INVESTIGATIONS ON INTERACTING BLEND SOLUTIONS OF POLY(ACRYLIC ACID) WITH POLY(VINYL PYRROLIDONE) OR POLY(VINYL ALCOHOL)

被引:44
|
作者
PALADHI, R [1 ]
SINGH, RP [1 ]
机构
[1] INDIAN INST TECHNOL,CTR MAT SCI,KHARAGPUR 721302,W BENGAL,INDIA
关键词
D O I
10.1016/0014-3057(94)90168-6
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 interacting blends of poly(acrylic acid) with poly(vinyl pyrrolidone) or poly(vinyl alcohol) in aqueous solutions have been studied by ultrasonic, rheological and viscometric techniques. The mixing of solutions of the polymers produces an immediate precipitate, indicating strong interaction between the polymers. Investigations over wide ranges of concentration, temperature, composition, pH and shear rate indicate the degree of miscibility, extent of interaction between the polymers and stoichiometry of the polymer complexes formed by the strong interaction between the polymers in solutions.
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页码:251 / 257
页数:7
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