Synthesis of core-shell polyurethane-poly(dimethylsiloxane) particles in supercritical carbon

被引：26

作者：

Chambon, P ^{[1
]}

Cloutet, E ^{[1
]}

Cramail, H ^{[1
]}

机构：

[1] Univ Bordeaux 1, CNRS, ENSCPB, UMR 5629,Lab Chim Polymers Organ, F-33607 Pessac, France

来源：

MACROMOLECULES | 2004年 / 37卷 / 16期

关键词：

D O I：

10.1021/ma049092t

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 synthesis of core-shell polyurethane-poly(dimethylsiloxane) particles in supercritical carbon dioxide was studied. The step-growth polymerizations between ethylene glycol (EG) and tolylene diiocyanate (TDI) in a dispersant organic medium in the presence of various well-designed surfmers such as hydroxy-terminated polystyrene were also investigated. It was shown that the synthesis of polymeric particles in scCO2 usually requires the use of a steric stabilizer that prevents the coagulation of the growing chains and enables the formation of a stable latex. It was found that the ratio of PDMS incorporated in the recovered particles does not exceed 50% in cyclohexane.

引用

页码：5856 / 5859

页数：4

共 18 条

[1]

BURKE ALC, 1996, POLYM MAT SCI ENG, V74, P248

[2] Dispersion polymerization of methyl methacrylate in supercritical carbon dioxide with a monofunctional pseudo-graft stabilizer [J].

Christian, P ;

Howdle, SM ;

Irvine, DJ .

MACROMOLECULES, 2000, 33 (02) :237-239

[3] CATIONIC POLYMERIZATION OF VINYL AND CYCLIC ETHERS IN SUPERCRITICAL AND LIQUID CARBON-DIOXIDE [J].

CLARK, MR ;

DESIMONE, JM .

MACROMOLECULES, 1995, 28 (08) :3002-3004

[4] ω-OH polystyrene and ω-OH poly(n-butyl acrylate) as reactive stabilizers for the preparation of uniform polyurethane particles in a dispersed medium [J].

Cloutet, E ;

Radhakrishnan, B ;

Cramail, H .

POLYMER INTERNATIONAL, 2002, 51 (10) :978-985

[5] Polymer synthesis and processing using supercritical carbon dioxide [J].

Cooper, AI .

JOURNAL OF MATERIALS CHEMISTRY, 2000, 10 (02) :207-234

[6] 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

[7] Fluorinated graft stabilizers for polymerization in supercritical carbon dioxide: The effect of stabilizer architecture [J].

Giles, MR ;

Griffiths, RMT ;

Aguiar-Ricardo, A ;

Silva, MRCG ;

Howdle, SM .

MACROMOLECULES, 2001, 34 (01) :20-25

[8] Synthesis and swelling of poly(bisphenol A carbonate) using supercritical CO2 [J].

Gross, SM ;

Givens, RD ;

Jikei, M ;

Royer, JR ;

Khan, S ;

DeSimone, JM ;

Odell, PG ;

Hamer, GR .

MACROMOLECULES, 1998, 31 (25) :9090-9092

[9]

Hepburn C., 1991, POLYURETHANE ELASTOM

[10] A novel process for the catalytic polymerization of olefins in supercritical carbon dioxide [J].

Kemmere, M ;

de Vries, T ;

Vorstman, M ;

Keurentjes, J .

CHEMICAL ENGINEERING SCIENCE, 2001, 56 (13) :4197-4204

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