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Stabilizing effect of the cationic surfactant (CPB) in emulsion polymerization

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Summary

Stable latices were prepared from the emulsion polymerization of styrene, using 2,2′-azobis(2-amidinopropane) dihydrochloride as the initiator and cetylpyridinium bromide (CPB), or a mixture of CPB and a nonionic surfactant as the emulsifier. The latices prepared with CPB exhibits extraordinarily low surface coverage values. The outstanding stabilizing effect of CPB outweighs the mixed-surfactant effect. However, the initiation was promoted by using the mixed surfactants. Increasing the initiator content, the initiation efficiency decreases and the kinetic moves toward the ideal case. The hydrodynamic layer thickness of latices have also been investigated.

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Authors and Affiliations

  1. Department of Chemical Engineering, Feng Chia University, Taichung, Taiwan, R.O.C.

    Hou-Hsein Chu & Hsin-Yee Hwang

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  1. Hou-Hsein Chu
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  2. Hsin-Yee Hwang
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Chu, HH., Hwang, HY. Stabilizing effect of the cationic surfactant (CPB) in emulsion polymerization. Polymer Bulletin 38, 295–302 (1997). https://doi.org/10.1007/s002890050051

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  • DOI: https://doi.org/10.1007/s002890050051

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