Atom transfer radical polymerization in supercritical carbon dioxide

被引:200
作者
Xia, JH
Johnson, T
Gaynor, SG
Matyjaszewski, K
DeSimone, J
机构
[1] Carnegie Mellon Univ, Dept Chem, Ctr Macromol Engn, Pittsburgh, PA 15213 USA
[2] Univ N Carolina, Dept Chem, Venable & Kenan Labs, Chapel Hill, NC 27599 USA
关键词
D O I
10.1021/ma9900380
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Atom transfer radical polymerization (ATRP) has been successfully carried out in supercritical carbon dioxide (scCO(2)) for the polymerization of fluorinated (meth)acrylates. In particular, well-controlled polymerizations have been obtained with the use of a fluoroalkyl-substituted 2,2'-bipyridine ligand. Block copolymers comprised of fluorinated (meth)acrylates and poly(MMA) (MMA = methyl methacrylate) or poly(DMAEMA) (DMAEMA = 2-(dimethylamino)ethyl methacrylate) were produced in scCO(2) by ATRP. In addition, the dispersion polymerization of MMA using ATRP in scCO(2) in the presence of a fluorinated polymeric surfactant stabilizer was successfully carried out to yield poly(MMA) latex particles with controlled molecular weight and a narrow molecular weight distribution.
引用
收藏
页码:4802 / 4805
页数:4
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