Effect of Initiator Charge on Dispersion Stability of Polymer Particles Formed by Soap-free Emulsion Polymerization of 4-Vinylaniline or 4-Vinylpyridine

被引：7
|
作者：
Yamamoto, Tetsuya [1 ]
Furuta, Ryo [2 ]
Kawai, Yusuke [1 ]
机构：
[1] Nagoya Univ, Dept Mat & Design Innovat Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Dept Chem & Biol Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan
来源：
CHEMISTRY LETTERS | 2019年 / 48卷 / 03期
关键词：
Soap-free emulsion polymerization; Dispersion stability; Acidity constant; POLYSTYRENE PARTICLES; STYRENE; MECHANISM;
D O I：
10.1246/cl.180917
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Monomers of 4-vinylaniline, and 4-vinylpyridine were studied to investigate the influence of charges of the initiator on the dispersion stability of the new polymer particles created using soap-free emulsion polymerization. The surface of the polymer particles included some functional groups originated from the monomers and some from the initiators, based on measurement of their zeta potentials. Therefore, during the polymerization, the dispersion stability was maintained when using cationic initiators. On the other hand, aggregation of particles occurred when anionic initiators were used due to the electrostatic attraction between the hydrophilic and hydrophobic groups on the polymer surfaces.
引用
收藏
页码：208 / 210
页数：3
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