Iodine transfer dispersion polymerization with CHI3 and reversible chain transfer-catalyzed dispersion polymerization with N-iodosuccinimide of methyl methacrylate in supercritical carbon dioxide

被引：5

作者：

Taniyama, Tomoya ^{[1
]}

Kuroda, Taisuke ^{[1
]}

Minami, Hideto ^{[1
]}

Okubo, Masayoshi ^{[1
,2
]}

机构：

[1] Kobe Univ, Grad Sch Engn, Dept Chem Sci & Engn, Kobe, Hyogo 6578501, Japan

[2] Smart Spheres Workshop Co Ltd, Kobe, Hyogo, Japan

来源：

POLYMER JOURNAL | 2012年 / 44卷 / 11期

基金：

日本学术振兴会;

关键词：

ITP; RTCP; supercritical carbon dioxide; LIVING RADICAL POLYMERIZATION; PRECIPITATION POLYMERIZATION; ORGANOTELLURIUM COMPOUNDS; EMULSION POLYMERIZATION; STYRENE; PHOSPHORUS; PARTICLES; GERMANIUM; RTCPS; TIN;

D O I：

10.1038/pj.2012.78

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Iodine transfer dispersion polymerization (dispersion ITP) with CHI3 and reversible chain transfer-catalyzed dispersion polymerization (dispersion RTCP) with N-iodosuccinimide of methyl methacrylate were performed successfully in supercritical carbon dioxide medium. Both polymerizations proceeded smoothly to similar to 80% conversion in 6 h and yielded the polymeric product as a powder after venting the reactor. In both syntheses, the number-average molecular weights (M-n) increased with greater conversion. The ratio (M-w/M-n) was maintained at comparatively low values throughout the polymerizations; the values of M-w/M-n were lower in the dispersion RTCP (1.3-1.4) than the dispersion ITP (1.5-1.7). A chain extension test using styrene indicated that the poly(methyl methacrylate) prepared by dispersion ITP and dispersion RTCP had high degrees of livingness (71 and 74%, respectively). Polymer Journal (2012) 44, 1082-1086; doi:10.1038/pj.2012.78; published online 23 May 2012

引用

页码：1082 / 1086

页数：5

共 44 条

[1] Improved control in nitroxide-mediated radical polymerization using supercritical carbon dioxide [J].

Aldabbagh, Fawaz ;

Zetterlund, Per B. ;

Okubo, Masayoshi .

MACROMOLECULES, 2008, 41 (07) :2732-2734

[2] Nitroxide-mediated precipitation polymerization of styrene in supercritical carbon dioxide: Effects of monomer loading and nitroxide partitioning on control [J].

Aldabbagh, Fawaz ;

Zetterlund, Per B. ;

Okubo, Masayoshi .

EUROPEAN POLYMER JOURNAL, 2008, 44 (12) :4037-4046

[3] Mechanism and kinetics of dithiobenzoate-mediated RAFT polymerization. I. The current situation [J].

Barner-Kowollik, Christopher ;

Buback, Michael ;

Charleux, Bernadette ;

Coote, Michelle L. ;

Drache, Marco ;

Fukuda, Takeshi ;

Goto, Atsushi ;

Klumperman, Bert ;

Lowe, Andrew B. ;

Mcleary, James B. ;

Moad, Graeme ;

Monteiro, Michael J. ;

Sanderson, Ronald D. ;

Tonge, Matthew P. ;

Vana, Philipp .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2006, 44 (20) :5809-5831

[4]

Brandrup J., 1999, Polymer Handbook, VII

[5] Dispersion polymerization of styrene in supercritical carbon dioxide: Importance of effective surfactants [J].

Canelas, DA ;

Betts, DE ;

DeSimone, JM .

MACROMOLECULES, 1996, 29 (08) :2818-2821

[6] Dispersion polymerizations of styrene in carbon dioxide stabilized with poly(styrene-b-dimethylsiloxane) [J].

Canelas, DA ;

DeSimone, JM .

MACROMOLECULES, 1997, 30 (19) :5673-5682

[7] Nitroxide-mediated polymerization in miniemulsion: A direct way from bulk to aqueous dispersed systems [J].

Charleux, B .

ADVANCES IN CONTROLLED/LIVING RADICAL POLYMERIZATION, 2003, 854 :438-451

[8] Use of iodocompounds in radical polymerization [J].

David, Ghislain ;

Boyer, Cyrille ;

Tonnar, Jeff ;

Ameduri, Bruno ;

Lacroix-Desmazes, Patrick ;

Boutevin, Bernard .

CHEMICAL REVIEWS, 2006, 106 (09) :3936-3962

[9] DISPERSION POLYMERIZATIONS IN SUPERCRITICAL CARBON-DIOXIDE [J].

DESIMONE, JM ;

MAURY, EE ;

MENCELOGLU, YZ ;

MCCLAIN, JB ;

ROMACK, TJ ;

COMBES, JR .

SCIENCE, 1994, 265 (5170) :356-359

[10] NARROW MOLECULAR-WEIGHT RESINS BY A FREE-RADICAL POLYMERIZATION PROCESS [J].

GEORGES, MK ;

VEREGIN, RPN ;

KAZMAIER, PM ;

HAMER, GK .

MACROMOLECULES, 1993, 26 (11) :2987-2988

← 1 2 3 4 5 →