Star-shaped polymers by metal-catalyzed living radical polymerization. 1. Design of Ru(II)-based systems and divinyl linking agents

被引：205

作者：

Baek, KY ^{[1
]}

Kamigaito, M ^{[1
]}

Sawamoto, M ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Polymer Chem, Kyoto 6068501, Japan

来源：

MACROMOLECULES | 2001年 / 34卷 / 02期

关键词：

D O I：

10.1021/ma000751l

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Star-shaped polymers that consist of well-defined poly(methyl methacrylate) [poly(MMA)] arms and a microgel core of a divinyl compound were prepared in high yield with the RuCl2(PPh3)(3)-catalyzed living radical polymerization followed by direct in-situ polymer linking reactions with divinyl compounds. In typical examples, these star-shaped polymers had the arm number (f) of 10-30 and (M) over bar (w)- (star) > 10(5). The following factors were effective in the star-shaped polymer formation: (a) a monofunctionalized chloride initiator; (b) a linking agent with a soft aliphatic or a rigid long aromatic spacer between the two methacryloyl groups.

引用

页码：215 / 221

页数：7

共 36 条

[1] Silyl enol ethers: End-capping agents for living radical polymerization of methyl methacrylate with ruthenium complex
Ando, T
Kamigaito, M
Sawamoto, M
[J]. MACROMOLECULES, 1998, 31 (19) : 6708 - 6711
[2] Living radical polymerization of methyl methacrylate with ruthenium complex: Formation of polymers with controlled molecular weights and very narrow distributions
Ando, T
Kato, M
Kamigaito, M
Sawamoto, M
[J]. MACROMOLECULES, 1996, 29 (03) : 1070 - 1072
[3] Design of initiators for living radical polymerization of methyl methacrylate mediated by ruthenium(II) complex
Ando, T
Kamigaito, M
Sawamoto, M
[J]. TETRAHEDRON, 1997, 53 (45) : 15445 - 15457
[4] Iron(II) chloride complex for living radical polymerization of methyl methacrylate
Ando, T
Kamigaito, M
Sawamoto, M
[J]. MACROMOLECULES, 1997, 30 (16) : 4507 - 4510
[5] Atom transfer radical polymerization of styrene using a novel octafunctional initiator: Synthesis of well-defined polystyrene stars
Angot, S
Murthy, KS
Taton, D
Gnanou, Y
[J]. MACROMOLECULES, 1998, 31 (21) : 7218 - 7225
[6] [Anonymous], ANIONIC POLYM PRINCI
[7] BAEK KY, 1998, POLYM PREPR JPN, V47, P155
[8] BAEK KY, 1997, POLYM PREPR JPN, V46, P154
[9] BAEK KY, 1999, POLYM PREPR AM CHEM, V40, P472
[10] SYNTHESIS AND DILUTE-SOLUTION BEHAVIOR OF MODEL STAR-BRANCHED POLYMERS
BAUER, BJ
FETTERS, LJ
[J]. RUBBER CHEMISTRY AND TECHNOLOGY, 1978, 51 (03): : 406 - 436

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