| abstract |
(57) [Summary] (Modified) [Objective] Aqueous two-step emulsion polymerization provides copolymers useful as compatibilizers for aqueous emulsion coatings, elastomers, adhesives, caulks and polymer blends. [Structure] The following structural formula: (R is a monovalent organic group having a polymerizable group, 1 is a polyvalent organic group, R 2 is an acyl group, X Is 0 or 1) is polymerized or copolymerized with a latent thiol monomer containing at least one functional group and at least one protected thiol group, and then the protected thiol group is deprotected to obtain a thiol functional group. A polymer having pendant pendant groups is formed, and then a second stage polymerization reacts the thiol functional pendant groups with a second ethylenically unsaturated monomer to form a graft copolymer. |