Osmium-mediated radical polymerization

被引：84

作者：

Braunecker, WA ^{[1
]}

Itami, Y ^{[1
]}

Matyjaszewski, K ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA

来源：

MACROMOLECULES | 2005年 / 38卷 / 23期

关键词：

D O I：

10.1021/ma051877r

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 ability of Osmium to mediate atom transfer radical polymerization (ATRP)) and stable free radical polymerization (SFRP) and to probe the potential interplay of these two radical polymerization mechanisms on a single metal catalysts was investigated. The polymers generated in reactions of bulk monomer at 100°C typically possessed molecular weights close to theoretical values based on conversion and were observed to follow first-order linear kinetics. Such observations indicated that the Os complex had mediated a controlled polymerization. The results show that polymerization could be mediated under directed ATRP conditions in DMF, but the solvent had an adverse effect on catalyst performance.

引用

页码：9402 / 9404

页数：3

共 42 条

[1] Living radical polymerization of methyl methacrylate with ruthenium complex: Formation of polymers with controlled molecular weights and very narrow distributions [J].

Ando, T ;

Kato, M ;

Kamigaito, M ;

Sawamoto, M .

MACROMOLECULES, 1996, 29 (03) :1070-1072

[2] Iron(II) chloride complex for living radical polymerization of methyl methacrylate [J].

Ando, T ;

Kamigaito, M ;

Sawamoto, M .

MACROMOLECULES, 1997, 30 (16) :4507-4510

[3] Catalytic activities of ruthenium(II) complexes in transition-metal-mediated living radical polymerization: Polymerization, model reaction, and cyclic voltammetry [J].

Ando, T ;

Kamigaito, M ;

Sawamoto, M .

MACROMOLECULES, 2000, 33 (16) :5825-5829

[4]

Arvanitopoulos L. D., 1998, ACS SYM SER, V685, P316, DOI DOI 10.1021/BK-1998-0685.CH020

[5] Controlled radical polymerization of styrene in the presence of lithium molybdate(V) complexes and benzylic halides [J].

Brandts, JAM ;

van de Geijn, P ;

van Faassen, EE ;

Boersma, J ;

van Koten, G .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1999, 584 (02) :246-253

[6] Experimental determination of the rate constant of deactivation of poly(styrene) and poly(butyl acrylate) radicals in atom transfer radical polymerization [J].

Chambard, G ;

Klumperman, B ;

German, AL .

MACROMOLECULES, 2002, 35 (09) :3420-3425

[7]

CLAVERIE JP, 1998, RES DISCL, V416, pP1595

[8] Functional polymers by atom transfer radical polymerization [J].

Coessens, V ;

Pintauer, T ;

Matyjaszewski, K .

PROGRESS IN POLYMER SCIENCE, 2001, 26 (03) :337-377

[9] Kinetics of living radical polymerization [J].

Goto, A ;

Fukuda, T .

PROGRESS IN POLYMER SCIENCE, 2004, 29 (04) :329-385

[10] Controlled radical polymerization of methacrylic monomers in the presence of a bis(ortho-chelated) arylnickel(II) complex and different activated alkyl halides [J].

Granel, C ;

Dubois, P ;

Jerome, R ;

Teyssie, P .

MACROMOLECULES, 1996, 29 (27) :8576-8582

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