Abstract
A brush type amphiphilic block copolymer of polystyrene-b-poly[poly(ethylene glycol) methyl ether methacrylate], PS40-b-PPEGMA70, obtained via ATRP was used as stabilizer in the emulsion polymerization of methyl methacrylate. It was shown that the incompatibility between the growing polymer particles of poly(methyl methacrylate) and the hydrophobic segment of the block copolymer surfactant (polystyrene) affects both the kinetics of the emulsion polymerization and the resulting particle morphologies. Because of the incompatibility of the two polymers, phase separation occurs, and the particle morphology changes from roughly spherical core–shell to more irregular with particles containing clusters of block copolymer surfactant as the amount of block copolymer surfactant increases. This in turn has an effect on the film formation, which results in turbid films. The results obtained from the emulsion polymerization of methyl methacrylate, the obtained hairy latex particles, and the film formation process were...
Published Version
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