稳态荧光探针研究Guerbet醇聚氧乙烯醚羧酸钠的聚集行为

doi:10.7517/j.issn.1674-0475.2006.02.110

影像科学与光化学 ›› 2006, Vol. 24 ›› Issue (2): 110-117.DOI: 10.7517/j.issn.1674-0475.2006.02.110

稳态荧光探针研究Guerbet醇聚氧乙烯醚羧酸钠的聚集行为

祝荣先, 靳志强, 张路, 赵濉, 俞稼镛

1. 中国科学院, 理化技术研究所, 北京, 100101;
2. 中国科学院, 研究生院, 北京, 100039

收稿日期:2005-09-28 修回日期:2005-11-22 出版日期:2006-03-23 发布日期:2006-03-23
通讯作者: 赵濉(1964- ),男,研究员,主要从事驱油表面活性剂方面的研究,通讯联系人,电话:010-64888161,E-mail:zhaosui@mail.ipc.ac.cn.

The Study of Aggregation Properties of Sodium Guerbet Tetradecyl Polyoxyethylene Ether Carboxylate by Steady-State Fluorescence

ZHU Rong-xian, JING Zhi-qiang, ZHANG Lu, ZHAO Sui, YU Jia-yong

1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. China;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, P. R. China

Received:2005-09-28 Revised:2005-11-22 Online:2006-03-23 Published:2006-03-23

摘要/Abstract

摘要： 以芘为荧光探针、二苯甲酮为猝灭剂,用稳态荧光探针法测定了合成的4种具有支链结构的Guerbet醇聚氧乙烯醚羧酸钠的临界胶束浓度和胶团的聚集数.结果表明,用稳态荧光探针法得到的临界胶束浓度(CMC)数值与表面张力法相差不大.结合临界胶束浓度、胶束微环境的极性和胶束聚集数的变化规律,推测了这类表面活性剂形成的胶束聚集体的结构形态.

关键词: 稳态荧光猝灭, 临界胶束浓度, 胶团聚集数, 胶团微极性, Guer-bet醇聚氧乙烯醚羧酸钠

Abstract: Critical micelle concentration(CMC) and micelle aggregation number(N) of the four branched surfactants sodium Guerbet tetradecyl polyoxyethylene ether carboxylate were determined by steady-state fluorescence probe method in which pyrene was used as fluorescence probe and benzophenone as quencher.The results showed that the CMC of this kind of surfactants can be determined by steady-state fluorescence probe,which fairly approached to that determined by surface tension method.Critical micelle concentration(CMC) and micelle aggregation number(N) decreased with the increasing of number of ether oxide units for all four surfactants,while the micropolarity of the micelles was less sensitive to the increasing of number of ethylene oxide units.

Key words: micelle, steady-state fluorescence quenching, critical micelle concentration, micelle aggregation number, micropolarity, sodium Guerbet tetradecylpolyoxyethylene ether carboxylate

中图分类号:

祝荣先, 靳志强, 张路, 赵濉, 俞稼镛. 稳态荧光探针研究Guerbet醇聚氧乙烯醚羧酸钠的聚集行为[J]. 影像科学与光化学, 2006, 24(2): 110-117.

ZHU Rong-xian, JING Zhi-qiang, ZHANG Lu, ZHAO Sui, YU Jia-yong. The Study of Aggregation Properties of Sodium Guerbet Tetradecyl Polyoxyethylene Ether Carboxylate by Steady-State Fluorescence[J]. Imaging Science and Photochemistry, 2006, 24(2): 110-117.

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稳态荧光探针研究Guerbet醇聚氧乙烯醚羧酸钠的聚集行为

The Study of Aggregation Properties of Sodium Guerbet Tetradecyl Polyoxyethylene Ether Carboxylate by Steady-State Fluorescence

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