Preparation of novel and unique nonspherical particles with almond-shell-like shape via dual-seeded dispersion polymerization in the presence of saturated hydrocarbon droplets

被引：21
作者：
Hosseinzadeh, Soleyman [2 ]
Saadat, Younes [1 ,2 ]
Abdolbaghi, Samira [2 ]
机构：
[1] Islamic Azad Univ, Dept Polymer Engn, Mahshahr Branch, Mahshahr 63519, Iran
[2] Amirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran 15914, Iran
来源：
COLLOID AND POLYMER SCIENCE | 2012年 / 290卷 / 09期
关键词：
Nonspherical particles; Dual-seeded dispersion polymerization; Almond-shell-like; Polar media; Morphology; COMPOSITE-PARTICLES; EMULSION POLYMERIZATION; FORMATION MECHANISM; DISK-LIKE; MONODISPERSE; MORPHOLOGY; SIZE;
D O I：
10.1007/s00396-012-2638-6
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 study, the preparation of micron-sized polymer particles having a novel and unique nonspherical shape which we called almond-shell-like by dual-seeded dispersion polymerization (DSDP) of 2-ethylhexyl methacrylate (EHMA) with polystyrene (PS) and poly(methyl methacrylate) (PMMA) seed particles in the presence of decane droplets and evaporation of decane after the polymerization was discussed. The experimental results showed that mushroom-like morphology which is a precursor of the almond-shell-like shape was obtained from DSDP of EHMA. It was found that with changing the PS/PMMA seed particles' weight ratio, the size of the dents on the surface of the particles can be controlled. Furthermore, it was observed that various nonspherical particles can be produced using different methacrylic seed particles and initiators.
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收藏
页码：847 / 853
页数：7
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