Cationic dispersion polymerizations in liquid carbon dioxide

被引：25
|
作者：
Clark, MR [1 ]
Kendall, JL [1 ]
DeSimone, JM [1 ]
机构：
[1] UNIV N CAROLINA,DEPT CHEM,VENABLE & KENAN LABS,CHAPEL HILL,NC 27599
来源：
MACROMOLECULES | 1997年 / 30卷 / 20期
关键词：
D O I：
10.1021/ma9619344
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The successful cationic dispersion polymerization of styrene in liquid carbon dioxide using amphiphilic black copolymers is reported. Vinyl ether block copolymers consisting of a CO2-philic fluorinated segment and a poly(methyl vinyl ether) anchoring segment were employed to stabilize the growing polystyrene (PS) particles. The effect of stabilization in these polymerizations on molar mass, molar mass distribution, and polymer yield was studied as a function of temperature and surfactant composition. Scanning electron microscopy confirmed the formation of PS particles ranging in size from 300 nm to 1 mu m in diameter.
引用
收藏
页码：6011 / 6014
页数：4
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