Abstract
The emulsion polymerization of styrene was investigated in presence of cation-active emulsifier monomers, namely N-alkyl-, N,N-dimethyl- and N-methacryloyloxyethylammonium bromides. It was found that the emulsifiers copolymerize with the main monomer. This makes it possible to obtain stable latices whose aqueous phase contains no emulsifier. In the studied system the length of the alipathic chain in the emulsifying monomer molecule determines the stability and the dispersity of the initial emulsion, as well as the polymerization kinetics and changes in the surface tension of the latex with the degree of conversion. However it does not influence the mechanism of styrene copolymerization with the emulsifying monomer.
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