Gemini Surfactant-Nonionic Polymer Mixed Micellar Systems

被引：18
|
作者：
Mirgorodskaya, A. B. [1 ]
Yatskevich, E. I. [1 ]
Zakharova, L. Ya [1 ]
Konovalov, A. I. [1 ]
机构：
[1] Russian Acad Sci, Kazan Sci Ctr, Arbuzov Inst Organ & Phys Chem, Kazan 420088, Russia
来源：
COLLOID JOURNAL | 2012年 / 74卷 / 01期
关键词：
ISOTHERMAL TITRATION CALORIMETRY; ANGLE NEUTRON-SCATTERING; BLOCK-COPOLYMERS; AQUEOUS-SOLUTION; ASSOCIATION BEHAVIOR; P103;
D O I：
10.1134/S1061933X11060135
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Tensiometry, dynamic light scattering, and optical spectrophotometry are employed to quantitatively characterize the aggregation behavior of a gemini (dicationic) surfactant in aqueous solutions in the presence of poly(ethylene glycol) with a molecular mass of 20000 Da or a Pluronic F127 block copolymer with a molecular mass of 12600 Da. It is shown that the formation of surfactant-polymer mixed aggregates decreases the positive surface potential of gemini surfactant micelles and is one of the main reasons for weakening of the micellar catalytic effect in hydrolysis of carboxylic acid esters.
引用
收藏
页码：91 / 98
页数：8
相关论文
共 50 条
12345