Non-bioaccumulative, environmentally preferable stabilizer architectures for the dispersion polymerization of MMA in supercritical CO2

被引：7

作者：

Ganapathy, Hullathy Subban ^{[1
]}

Kim, Jun Ho ^{[1
]}

Kim, Won Soo ^{[1
]}

Woo, Min Hee ^{[1
]}

Lee, Min Young ^{[1
]}

Hong, Seung-Soo ^{[2
]}

Kim, Hyun Gyu ^{[3
]}

Jeong, Euh Duck ^{[3
]}

Lim, Kwon Taek ^{[1
]}

机构：

[1] Pukyong Natl Univ, Dept Imaging Syst Engn, Pusan 608739, South Korea

[2] Pukyong Natl Univ, Dept Chem Engn, Pusan 608739, South Korea

[3] Busan Ctr, Korea Basic Sci Inst, Pusan 609735, South Korea

来源：

COLLOID AND POLYMER SCIENCE | 2008年 / 286卷 / 6-7期

基金：

新加坡国家研究基金会;

关键词：

non-bioaccumulative; short-chain fluorinated stabilizers; Supercritical CO2; random copolymers; dispersion polymerization; poly (methyl methacrylate);

D O I：

10.1007/s00396-008-1860-8

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：

To overcome the environmental concerns associated with long-chain perfluorinated compounds, in this report, non-bioaccumulative, environmentally friendly stabilizer architectures based on short-chain fluorinated polymers have been designed for the dispersion polymerization of methyl methacrylate (MMA) in supercritical CO2. Random copolymers composed of 2-(diisopropylamino)ethyl methacrylate (DPAEMA) and 2,2,3,3,4,4,4-heptafluorobutyl methacrylate (FBMA) or 2,2,3,3,4,4,5,5-octafluoropentyl methacrylate were prepared with various comonomer ratios and utilized as stabilizers. It was found that the copolymers effectively stabilized PMMA latexes in CO2, leading to the formation of free-flowing, spherical PMMA particles. With increase in the concentration of the stabilizer poly(FBMA-co-DPAEMA) from 2% to 6% (w/w with respected to MMA), the particles diameter decreased from 3.02 to 1.0 mu m.

引用

页码：843 / 848

页数：6

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