MOLECULAR CHARACTERIZATION OF A COPOLYMER OF 2-ALLYLPHENOXYORGANOCYCLOTRIPHOSPHAZENE WITH STYRENE, METHYL-METHACRYLATE AND VINYLBENZYL CHLORIDE

The monomer 2-allylphenoxyorganocyclotriphosphazene was synthesized by reacting hexachlorocyclotriphosphazene with 2-allylphenol, phenol and 2,2,2-trifluoroethanol by phase transfer catalysis in a dichlorometha ne/alkaline solution. The copolymerizations of 2-allylphenoxyorganocyc lotriphosphazene with styrene, methyl methacrylate and vinylbenzyl chl oride were investigated. Nine copolymers of 2-allylphenoxyorganocyclot riphosphazene were identified in the solution. These copolymers were c haracterized by using light scattering, viscometry and P-31 n.m.r. spe ctroscopic techniques. The micelles were observed to hydrodynamically and thermodynamically behave as impermeable spheres. The structure of the micellar shell was determined. The translational diffusion coeffic ient, Mark-Houwink constants, hydrodynamic radius, micellar weight, ag gregation number, characteristic ratio and intrinsic viscosity were ob tained. The chains of copolymer were observed to have a high degree of stiffness and a lack of rotational freedom in solution. Copyright (C) 1996 Elsevier Science Ltd.