スルホンアミド-水界面におけるカチオン性界面活性剤の配向とその懸濁液の分散性無機電解質の添加による影響

概要

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The adsorption isotherms of hexadecyltrimethylammonium bromide on sulfadiazine, sulfaphenazole, and sulfisomidine in the presence of 10^<-3>, 10^<-2>, and 10^<-1>M KBr were determined and comparison of these isotherms with isotherms in the absence of KBr was made. It is clear from this comparison that with increasing concentrations of KBr the adsorption isotherms move toward lower equilibrium concentrations and the saturated amount of adsorption increases for these three sulfonamides. This movement of isotherms and increase in the saturated amount of adsorption by addition of KBr vary with the kind of sulfonamides and these variations may be explained by both hydrophobic and hydrophilic characters of the surface of each sulfonamide. It is found that these variations of the adsorption isotherms influence the flocculation-deflocculation property of the suspensions.
公益社団法人日本薬学会の論文
1974-12-25