Abstract
By using macro azo initiator containing polyethyleneglycol (PEG) block and di-functional monomers,gel-particles with projections were prepared in H2O/ethanol solutions. The mechanisms of theformations of gel particles with projections were studied by investigation of the polymerization processes.The effects of polymerization temperatures and kinds of di-functional monomers on morphology of the gel particles were also investigated.The properties of the primary particles, such as the hardness and the affinity with solvents, affected the morphology of the gelparticles. The primaryparticles which have been dispersed stably with PEG-block will form clusters, and grow larger to thegel particles with projections
