LEWIS ACID-ASSISTED HIGH-SPEED LIVING ANIONIC-POLYMERIZATION BY THE ALUMINUM PORPHYRIN-LEWIS ACID SYSTEMS

被引：13

作者：

AIDA, T

KUROKI, M

SUGIMOTO, H

WATANABE, T

ADACHI, T

KAWAMURA, C

INOUE, S

机构：

[1] Department of Synthetic Chemistry, Faculty of Engineering, University of Tokyo, Tokyo, Bunkyo-ku

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1993年 / 67卷

关键词：

D O I：

10.1002/masy.19930670110

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Living anionic polymerization of methacrylic esters initiated with aluminum porphyrins (1) was found to be dramatically accelerated (e.g., 46 000 times) upon addition of bulky Lewis acids such as alkylaluminum diphenolates (3). Under appropriate conditions, a narrow MWD poly(methyl methacrylate) with Mn exceeding a million could be synthesized. The key conception of this high speed living polymerization is the coexistence of nucleophile (2) and Lewis acid (3) realized by steric repulsion.

引用

页码：125 / 135

页数：11

共 7 条

[1] CONTROLLED SYNTHESIS OF HIGH-MOLECULAR-WEIGHT POLY(METHYL METHACRYLATE) BASED ON LEWIS ACID-ASSISTED HIGH-SPEED LIVING POLYMERIZATION INITIATED WITH ALUMINUM PORPHYRIN
ADACHI, T
SUGIMOTO, H
AIDA, T
INOUE, S
[J]. MACROMOLECULES, 1992, 25 (08) : 2280 - 2281
[2] KODAIRA T, 1991, POLYM PREPR JPN, V40, P1948
[3] NOVEL PHOTOINDUCED CARBON CARBON BOND FORMATION VIA METAL-ALKYL AND METAL-ENOLATE PORPHYRINS - VISIBLE LIGHT-MEDIATED POLYMERIZATION OF ALKYL METHACRYLATE CATALYZED BY ALUMINUM PORPHYRIN
KUROKI, M
AIDA, T
INOUE, S
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (15) : 4737 - 4738
[4] STERIC SEPARATION OF NUCLEOPHILE AND LEWIS ACID PROVIDING DRAMATICALLY ACCELERATED REACTION - HIGH-SPEED POLYMERIZATION OF METHYL-METHACRYLATE WITH ENOLATE-ALUMINUM PORPHYRIN STERICALLY CROWDED ORGANOALUMINUM SYSTEMS
KUROKI, M
WATANABE, T
AIDA, T
INOUE, S
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (15) : 5903 - 5904
[5] KUROKI M, 1991, POLYM PREPR JPN, V40, P220
[6] LIVING POLYMERIZATION OF DELTA-VALEROLACTONE WITH ALUMINUM PORPHYRIN - TRIMOLECULAR MECHANISM BY THE PARTICIPATION OF 2 ALUMINUM PORPHYRIN MOLECULES
SHIMASAKI, K
AIDA, T
INOUE, S
[J]. MACROMOLECULES, 1987, 20 (12) : 3076 - 3080
[7] SUGIMOTO H, 1991, POLYM PREPR JPN, V40, P1948

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