COPOLYMERIZATION IN A NONAQUEOUS LYOTROPIC LIQUID-CRYSTAL

Addition of polar and nonpolar monomers to a surfactant bis [2-(10-undecenoyloxycarbonyl) ethyl] (p-vinylbenzoyl) methylammoniumchloride gave isotropic solutions at sufficiently high concentrations of the monomers. Polymerization gave a lamellar structure. Low angle x-ray diffraction was used to determine the location of the monomer after polymerization. Aromatic monomers (divinylbenzene) were all penetrated between the surfactant hydrocarbon chains. Long chain aliphatic monomers (1-octadecene) were localized in the plane between the methyl groups while short chain aliphatic monomers were partitioned between Sites A and B. Addition of polar monomers (acrylic acid, a.o.) influenced the location of the penetrating monomers and vice versa.