Study of kinetics and mechanisms of dispersion polymerization of 2-hydroxypropyl methacrylate
Abstract:In the present work, the dispersion polymerization of 2-hydroxypropyl methacrylate (HPMA) was carried out in No. 120 gasoline/n-pentanol medium using azobisisobutyronitrile as initiator and a comb-structured amphipathic polymer as dispersant. The effects of many factors such as the type, structure and concentration of dispersants, and the reaction temperature, on the reaction and the morphology of the polymer microspheres obtained were investigated. It is proposed that the dispersion polymerization of HPMA has two nucleation mechanisms, homogeneous nucleation and inverse mini-emulsion nucleation. Furthermore, the kinetic of HPMA dispersion polymerization was also studied.
© 2001 Society of Chemical Industry
Document Type: Research Article
Publication date: March 1, 2001
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