Anomalous particles formed in two-stage soap-free emulsion polymerization of styrene on poly(2-acetoxyethyl methacrylate)

被引：20
|
作者：
Shi, S [1 ]
Kuroda, S [1 ]
Kubota, H [1 ]
机构：
[1] Gunma Univ, Fac Engn, Dept Chem, Kiryu, Gumma 3768515, Japan
来源：
COLLOID AND POLYMER SCIENCE | 2003年 / 281卷 / 04期
关键词：
two-stage soap-free emulsion polymerization; latex interpenetrating polymer network; anomalous particle; nonspherical; MORPHOLOGY; SUSPENSION; NETWORKS; MECHANISM;
D O I：
10.1007/s00396-002-0773-1
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 two-stage soap-free emulsion polymerization of styrene on cross-linked poly(2-acetoxyethyl methacrylate) (PAEMA), the resulting PAEMA/polystyrene latex interpenetrating polymer network particles were found to be nonspherical, assuming a wide variety of surface morphologies, such as "confetti-like", "raspberry-like", "popcornlike", "void-containing" particles, "doublets" and "triplets". The anomalous particles were characterized by transmission electron microscopy and atomic force microscopy, as a function of the degree of cross-linking of the PAEMA seed, the composition, the addition mode of the second-stage monomer, and the initiator type.
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页码：331 / 336
页数：6
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