ULTRASONIC DEGRADATION OF WATER-SOLUBLE POLYMERS

被引:100
|
作者
KODA, S
MORI, H
MATSUMOTO, K
NOMURA, H
机构
[1] Department of Chemical Engineering, School of Engineering, Nagoya University, Nagoya
关键词
ULTRASONIC DEGRADATION; WATER-SOLUBLE POLYMERS; CAVITATION;
D O I
10.1016/0032-3861(94)90045-0
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 ultrasonic degradation of the water-soluble polymers pullulan, poly(ethylene oxide) and polyvinylpyrrolidone was studied at a frequency of 500 kHz. The apparent degradation rate constants are 0.030 for pullulan, 0.076 for poly(ethylene oxide) and 0.032 min(-1) for polyvinylpyrrolidone. The degradation mechanism was analysed by using Glynn's model. The water-soluble polymers used here are degraded with a Gaussian probability by ultrasonic irradiation.
引用
收藏
页码:30 / 33
页数:4
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