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

Toshihiko Arita; Michael Buback; Olaf Janssen; Philipp Vana

doi:10.1002/marc.200400204

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

Toshihiko Arita, Michael Buback, Olaf Janssen, Philipp Vana

Research output: Contribution to journal › Article › peer-review

75 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1376-1381
Number of pages	6
Journal	Macromolecular Rapid Communications
Volume	25
Issue number	15
DOIs	https://doi.org/10.1002/marc.200400204
Publication status	Published - 2004 Aug 2
Externally published	Yes

Keywords

High pressure
Kinetics (polym.)
Living/controlled free-radical polymerization
Molecular weight distribution/molar mass distribution
Reversible addition fragmentation chain transfer (RAFT)

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/marc.200400204

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abstract = "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.",

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T2 - Rate enhancement and improved control

AU - Arita, Toshihiko

AU - Buback, Michael

AU - Janssen, Olaf

AU - Vana, Philipp

PY - 2004/8/2

Y1 - 2004/8/2

N2 - 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.

AB - 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.

KW - High pressure

KW - Kinetics (polym.)

KW - Living/controlled free-radical polymerization

KW - Molecular weight distribution/molar mass distribution

KW - Reversible addition fragmentation chain transfer (RAFT)

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

Abstract

Keywords

ASJC Scopus subject areas

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