Brij-micelle and polyacrylic acid interaction investigated by Cu2+-induced pyrene fluorescence: Effect of brij-micelle structure

被引：15

作者：

Bandyopadhyay, Prasun ^{[1
]}

Ghosh, Amit K. ^{[1
]}

Bandyopadhyay, Sayan ^{[1
]}

机构：

[1] Unilever Res India, Bangalore 560066, Karnataka, India

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 476卷 / 4-6期

关键词：

WATER-SOLUBLE POLYMERS; POLY(ACRYLIC ACID); NONIONIC SURFACTANTS; AQUEOUS-SOLUTIONS; POLY(ETHYLENE OXIDE); PROBE; SULFATE; PH;

D O I：

10.1016/j.cplett.2009.06.023

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：

Fluorescence response of pyrene has been studied in the presence of polyacrylic acid (PAA) and brij surfactant micelles with Cu2+ as an ionic quencher. The quenched pyrene emission is completely recovered with the addition of PAA (conc. 2.4 x 10(-4) M) for brij 35 (poly-oxyethylene-23 lauryl ether) micelle indicating PAA-Cu2+ complex formation at the micelle-water interface. This could be due to the relatively easier accessibility of PAA polymer chains near poly-oxyethylene chain of brij 35 micelle compared to brij 30 (poly-oxyethylene-4 lauryl ether) micelle. The interaction between brij-micelle and polymer is confirmed by turbidimetry and NMR spectroscopy. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：244 / 248

页数：5

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