Salt-induced micellization of pluronic F88 in water

被引：20
|
作者：
Patel, K. [1 ]
Bahadur, P. [1 ]
Guo, C. [2 ]
Ma, J. H. [2 ]
Liu, H. Z. [2 ]
Nakashima, K. [3 ]
机构：
[1] V N S Gujrat Univ, Dept Chem, Surat 395007, India
[2] Chinese Acad Sci, Inst Proc Engn, Lab Separat Sci & Engn, Beijing, Peoples R China
[3] Saga Univ, Fac Sci & Engn, Dept Chem, Saga 840, Japan
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2008年 / 29卷 / 05期
关键词：
block copolymers; micelles; pluronics;
D O I：
10.1080/01932690701757931
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：
The effect of potassium chloride on the micellization of a poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer (Pluronic F88: EO103PO39EO103 center dot) in water was studied by fluorescence, FTIR, H-1 NMR, dynamic light scattering, and dye solubilization. The critical micellization temperature (CMT) values of the copolymer decreased with an increase of KCl concentration while micellar core gets progressively dehydrated. The results reveal the leading role of salt-water interaction in promoting the micellization of PEO-PPO-PEO copolymer by the addition of salt. No significant micellar growth was seen even at temperatures close to cloud point.
引用
收藏
页码：748 / 755
页数：8
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