Effect of salt on the micellization of pluronic P65 in aqueous solution

被引：76

作者：

Jain, NJ ^{[1
]}

George, A ^{[1
]}

Bahadur, P ^{[1
]}

机构：

[1] S Gujarat Univ, Dept Chem, Surat 395007, India

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1999年 / 157卷 / 1-3期

关键词：

block copolymers; micellization; salt effect; pluronic;

D O I：

10.1016/S0927-7757(99)00041-2

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：

Solutions of an ethylene oxide-propylene oxide triblock copolymer (PEO/PPO/PEO) pluronic(R) P65 (50-50 wt.% of each block with total molecular weight of 3400 g mol(-1)) in aqueous sodium chloride examined by different methods reveal salt-induced micellization. The critical micelle concentrations (CMCs) and critical micelle temperatures (CMTs) showed a marked decrease in the presence of added salt. Unimer-to-micelle transitions at low concentration (or temperature) and micellar growth at temperature close to cloud point are discussed. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：275 / 283

页数：9

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