SCAVENGING OF HYDRATED ELECTRONS BY HYDROPHOBIC SOLUTES IN IONIC MICELLAR SOLUTIONS

Pulse radiolysis has been used to investigate scavenging of hydrated e lectrons (e(aq)-) by hydrophobic acceptors in anionic micellar solutio ns of dodecylsulfates and cationic micellar solutions of alkyltrimethy lammonium halides. It is found that the rate of e(aq)- decay depends n ot only on the charge of micelles but also on the kind of scavenger, m icellar size and the nature of counterions. The results are discussed in terms of scavenger effectiveness, its distribution between aqueous and micellar phases and location in the aggregates of different struct ure.