Fundamental Studies of the Application of Synthetic Resin Latices

Film Formation of Synthetic Resin Latices

Abstract

The surface and internal structures of films prepared from polybutyl methacrylate latex were observed under an electron micro-scope, and the mechanical properties of films were measured. Elevation of drying temp. or heat treatment (120°C, 5 min.) were favorable toformation of perfect films in which coalescence of polymer particles was complete. Effects of amount of potassium persulfate and emulsifier to the film-forming temp. Tf, particle diameter d, and intrinsic viscosity [η] of methyl methacrylate-methyl acrylate copolymer latex were investigated. The decrese in Tf with decrease in d and in [η] was discussed theoretically.