Morphology of Poly(acrylate-styrene-acrylamide) Latex Particles Prepared by Seeded Emulsion Polymerization

摘要

The production of latex particles with defined morphology is a problem of great technical interest. Seeded emulsion polymerization has been considered the most convenient process to synthesize two-phase particles. At present, the relationship between the polymerization conditions and particle morphology has not yet been fully understood. Works in this field demonstrate that particle morphology is influenced by many factors, such as the hydrophilicity of the monomers and polymers, particle viscosity, the molecular weight of polymers, the degree of grafting between the polymers, and the rate of transport of monomers, radicals and oligomers. Acrylic-styrene copolymer latex has been widely studied both in theory and in practice by many researchers. In this article, poly(acrylate-styrene-acrylamide) latex particles were prepared under strictly defined conditions and their morphology was characterized by transmission electron microscope (TEM).