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The 52nd Colloid and Surface Science Symposium of the Divis­ ion of Colloid and Surface Chemistry of the American Chemical Society was held in Knoxville, TN, June 12-14, 1978, and one of its Sections was devoted to the topic of Solution Chemistry of Surfactants. Although it was billed as the Section on Solution Chemistry of Surfactants, but it was indeed a veritable inter­ national symposium on this topic as 51 papers by about 100 con­ tributors from 12 countries were listed in the program. The present volume and its companion volume 2 document the proceedings of the above-mentioned Section on Solution Chemistry of Surfactants. In 1976 there was held an international symposium on Micellization, Solubilization and Microemulsions in Albany, l the proceedings of which have been chronicled in two volumes. A great deal of material dealing with micelles contributed by a legion of prominent researchers constitutes these volumes but a few subtopics were not adequately covered; so it was deemed appro­ priate to cover these topics as well as the recent progress in the general area of aggregation of surfactants in this Section. Also as it is the amphiphilicity or amphipathicity• of a surfact­ ant molecule which is responsible for both adsorption at inter­ faces and aggregation in solution, so it was considered quite apropos to include the topic of adsorption at interfaces in this Section. Concomitantly, the present volumes not only cover the aggregation phenomena but also the adsorption at interfaces.

This and its companion Volume 2 comprise the proceedings of the International Symposium on'Solution Behavior of Surfactants - Theoretical and Applied Aspects'organized under the auspices of the 11th Northeast Regional Meeting of the American Chemical Soci­ ety held in Potsdam, N. Y., June 30-July 3, 1980. This Symposium re­ presented the third event in the series of symposia dealing with the topic of surfactants in solution. The first Symposium was held in Albany, N. Y., in 1976 under the title'Micellization, Solubili­ zation and Microemulsions', 1 the proceedings of which have been doc­ umented in a two-volume set • The second was held under the title'~olution Chemistry of Surfactants'in 1978 in Knoxville, TN, an~ the proceedings of this event have also been properly chronicled • Apropos, the fourth biennial Symposium in, this series is entitled'International Symposium on Surfactants in Solution'(K. L. Mittal and B. Lindman, Cochairmen) and is scheduled to be held from June 27 to July 2, 1982 in Lund, Sweden. Since these biennial events have been very successful and important in bringing researchers with varied interests together and in stimulating interdisciplinary communication, so the plans are to continue these on a regular basis with a change in venue for each meeting.

Contains selected invited papers presented at the 10th International Symposium on Surfactants in Solution held in Caracas, Venezuela. The volume covers phase behaviour of monolayers, contact angle hysteresis, micellar relaxation, micellar catalyzed reactions, polymerization in microemulsions, polymer-surfactant complexation, asphaltenes, and more.