Organizational and Aggregational Characteristics of Some Monomeric and Polymerized Quaternary Ammonium Salts

In the present study two micelle forming polymerizable quaternary ammonium salts bearing the double bond either at the ionic head, or at the end of the aliphatic chain were prepared. Furthermore, the structure of the polymerizable group was different in the two cases, one being CH2=CH-0-(C=O)- and the other CH2=CH-(C=O)-O-. By means of this functionalization it was possible to study the effect of minor molecular modification on micellization of these surfactants on one hand and their mesomorphic behavior on the other. It was found that the position of the double bond on the monomers affects the extent of constraints which are imposed on the polymers. These constraints subsequently influence, both the micellization of polymerized micelles as well as their behavior in the melt.