Cooperative Binding of Sodium Dodecyl Sulfate with Chitosan in Water-Alcohol Mixtures

被引：5
|
作者：
Shilova, S., V [1 ]
Tret'yakova, A. Ya [1 ]
Barabanov, V. P. [1 ]
机构：
[1] Kazan Natl Res Technol Univ, Kazan 420015, Russia
来源：
POLYMER SCIENCE SERIES A | 2019年 / 61卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
SURFACTANT COMPLEXES; POLYELECTROLYTE COMPLEXES; AGGREGATION; ASSOCIATION; TRANSITION; ADDITIVES; COLLAPSE; NETWORK; CHITIN;
D O I：
10.1134/S0965545X19010176
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 formation of polymer-colloid complexes of chitosan and anionic surfactantsodium dodecyl sulfatein water-alcohol mixtures is studied by potentiometry using ion-selective electrodes. The influence of the nature and content of organic cosolvent (methanol, ethanol, and 2-propanol) on the parameters of binding of surfactant with chitosan and the stability of complexes is discussed. The obtained data are analyzed in terms of the model of cooperative binding and pseudophase model. It is shown that addition of 10-20vol% of ethanol and 2-propanol to aqueous solution intensifies cooperative binding of sodium dodecyl sulfate with chitosan, which leads to the decrease in the critical association concentration and increase in the parameters of cooperativity and stability of complexes.
引用
收藏
页码：39 / 45
页数：7
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