SEEDED SEMI-CONTINUOUS EMULSION COPOLYMERIZATION OF BUTYL ACRYLATE AND 2-ETHYLHEXYL ACRYLATE

摘要

There are many different operation methods on the semi-continuous emulsion polymerization, so there exist more complex mechanisms and many researchers gave different results, even the opposite results. More attention has been paid to the study of semi-continuous emulsion polymerization of acrylates, but no study dealt with the copolymerization system of butyl acrylate (BA) and 2-ethylhexyl acrylate (2-EHA) in the published literatures. In the present work, the seeded semicontinuous emulsion copolymerization of BA and 2-EHA was carried out. The effects of the feeding rate on the polymerization rate, particle size, particle number, copolymer composition, average radical number per particle were investigated.