RAFT-polymerization of styrene up to high pressure: Rate enhancement and improved control

被引：73

作者：

Arita, T ^{[1
]}

Buback, M ^{[1
]}

Janssen, O ^{[1
]}

Vana, P ^{[1
]}

机构：

[1] Univ Gottingen, Inst Phys Chem, D-37077 Gottingen, Germany

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 15期

关键词：

high pressure; kinetics (polym.); living/controlled free-radical polymerization; molecular weight distribution/molar mass distribution; reversible addition fragmentation chain transfer (RAFT);

D O I：

10.1002/marc.200400204

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Application of high pressure, up to 2 500 bar, in cumyl dithiobenzoate-mediated styrene reversible addition fragmentation chain transfer (RAFT) polymerizations was found to be extremely advantageous with respect to both rate and control of polymerization. The overall rate of polymerization could be increased by a factor of approximately 3 with, e.g., at 23% conversion, concomitantly reducing the polydispersity indices from 1.35 to 1.10. No significant effect of increased pressure on the rate retardation effect was found.

引用

页码：1376 / 1381

页数：6

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