Abstract
Two kinds of N-substituted acrylamides having different hydrophilicity were copolymerized with styrene in soap-free aqueous media. The polymerization behavior of acryl-amides depended on their hydrophilicity. The resulting latices were stable at low temperature and low electrolyte concentration but they flocculated above a critical temperature and a critical electrolyte concentration. The critical conditions were decided by the components on particle surface and a series of latices having the critical temperature between 5 and 50°C could be prepared. Reversible transition between dispersion and flocculation by changing temperature was observed in some latices.
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Hoshino, F., Fujimoto, T., Kawaguchi, H. et al. N-Substituted Acrylamide-Styrene Copolymer Latices II. Polymerization Behavior and Thermosensitive Stability of Latices. Polym J 19, 241–247 (1987). https://doi.org/10.1295/polymj.19.241
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DOI: https://doi.org/10.1295/polymj.19.241
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