Mono-dispersed PMMA/GMA/DVB(PMGD) microspheres with size ranging from 200 to 800 nm were synthesized by soap-free emulsion polymerization and seeded soap-free emulsion polymerization.

P(St-EA-MAA) copolymer latex was synthesized by a half continuous non-soap seed emulsion polymerization using styrene(St) as a skeleton,ethyl acrylate ester(EA) and methyl cyrlic acid(MAA) asmonomers.

Preparation for cationic soap-free emulsion of styrene-propylene series;

The effect of cationic comonomer methacryloyloxy ethyl trimethylammonium chloride(DMC) on the rate of polymerization,the dissolvability of polymer in THF,the stability and pH value of methyl methacrylate(MMA)/butyl acrylate(BA)/DMC soap-free emulsion were studied systematically.

Self-crosslinking copolymers based on 2-(N-propylperfluorooctanesulfoamido) ethyl acrylate(FA),methyl methacrylate(MMA),n-butyl acrylate(n-BA) and sodium 2-acrylamide-2-methyl propanesulfonate(AMPSNa) were synthesized via soap-free emulsion polymerization with vinyl triethoxysilane(VTES) as a crosslinking agent.

A series of soap-free emulsions synthesized by introducing a polymer dispersing agent made by ourselves were prepared without solvents on the basis of acrylate,styrene,and so on.