Pulse radiolytic investigation on the reactivity of hydrated electron towards acceptors bound to cationic micelles—2. Comparison of hexadecylpyridinium chloride with benzyl chloride and benzyl alcohol as electron scavengers

International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry Pub Date : 1992-12-01 DOI:10.1016/1359-0197(92)90221-Z

E. Szajdzińska-Piȩtek, R. L̵ubis, J.L. Gȩbicki

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Abstract

Pulse radiolysis has been used to study kinetics of scavenging of hydrated electron (e^-_aq) by hexadecylpyridinium chloride, benzyl chloride and benzyl alcohol in aqueous micellar solutions of alkyltrimethylammonium halides.

The results corroborate our earlier finding [see the first part of this series by Szajdzińska-Piȩtek E., Gȩbicki J.L. and Kroh J. (1992) Radiat. Phys. Chem.39, 117] that reactivity of e^-_aq in cationic micellar solutions depends on the kind of micelle-bound acceptor. The effect seems to be related to the effectiveness of scavengers rather than to their different locations within aggregates.

The observed influence of micelle size and counterion substitution on e^-_aq scavenging is discussed in terms of inter- and intramicellar electron transfer, and partition of the solute between aggregates and aqueous phase.

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水合电子对阳离子胶束受体反应性的脉冲辐射分析研究[2]。十六烷基氯化吡啶与氯化苄和苯甲醇作为电子清除剂的比较

采用脉冲辐射解法研究了烷基三甲基卤化铵胶束水溶液中十六烷基吡啶、氯化苄和苄基醇对水合电子(e-aq)的清除动力学。结果证实了我们早期的发现[见本系列的第一部分Szajdzińska-Piȩtek E.， Gȩbicki J.L.和Kroh J. (1992) Radiat]。理论物理。[化学].39,117]表明，e-aq在阳离子胶束溶液中的反应性取决于胶束结合受体的种类。这种影响似乎与清道夫的有效性有关，而不是与它们在聚集体中的不同位置有关。胶束大小和反离子取代对e-aq清除的影响，从胶束间和胶束内的电子转移，以及聚集体和水相之间溶质的分配等方面进行了讨论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry

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