Effect of second monomer and initiator type, mixing method, and stabilizer content on the shape of the particles produced by seeded dispersion polymerization in the presence of saturated hydrocarbon droplets

被引：15

作者：

Hosseinzadeh, Soleyman ^{[1
]}

Saadat, Younes ^{[1
]}

Eslami, Hormoz ^{[1
]}

Afshar-Taromi, Faramarz ^{[1
]}

Hosseinzadeh, Alireza ^{[2
]}

Rimaz, Mehdi ^{[2
]}

Hooshangi, Vahid ^{[2
]}

机构：

[1] Amirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran 15914, Iran

[2] Payame Noor Univ, Dept Chem, Tehran, Iran

来源：

COLLOID AND POLYMER SCIENCE | 2012年 / 290卷 / 16期

关键词：

Nonspherical particles; Seeded dispersion polymerization; Polar media; Morphology; Polystyrene; EMULSION POLYMERIZATION; COMPOSITE-PARTICLES; FORMATION MECHANISM; HOLLOW STRUCTURE; DISK-LIKE; MONODISPERSE; MORPHOLOGY; SIZE;

D O I：

10.1007/s00396-012-2769-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, the preparation of micron-sized polymer particles with nonspherical shapes via seeded dispersion polymerization of 2-ethylhexyl methacrylate with polystyrene seed particles in the presence of hydrocarbon droplets and evaporation of hydrocarbon after the polymerization under various polymerization conditions was discussed. The effect of second monomer and initiator type, mixing method, and stabilizer content on the shape of the obtained particles was investigated. It was observed that particles with more nonspherical shapes were obtained with increasing the alkyl chain length of ester group of the methacrylate of the second monomer which is because of increasing the absorption amounts of hydrocarbon by second polymer domains. Moreover, the experimental results showed that shape of the particles which was produced by shaking is more nonspherical than the shape of the particles which was obtained from tumbling. Furthermore, particles with different nonspherical shapes were prepared by changing the initiator type and stabilizer content.

引用

页码：1713 / 1719

页数：7

共 24 条

[1] Preparation of micrometer-sized, monodisperse "Janus" composite polymer particles having temperature-sensitive polymer brushes at half of the surface by seeded atom transfer radical polymerization [J].