Kinetic and mechanistic investigation of mononuclear and flexibly linked dinuclear complexes for copolymerization of CO2 and epoxides

Stephan Klaus; Sergei I. Vagin; Maximilian W. Lehenmeier; Peter Deglmann; Anna K. Brym; Bernhard Rieger

doi:10.1021/ma201387f

Kinetic and mechanistic investigation of mononuclear and flexibly linked dinuclear complexes for copolymerization of CO₂ and epoxides

Stephan Klaus, Sergei I. Vagin, Maximilian W. Lehenmeier, Peter Deglmann, Anna K. Brym, Bernhard Rieger

Wacker-Chair of Macromolecular Chemistry

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

63 Scopus citations

Abstract

Mono- and dinuclear salphen-type complexes were developed and investigated in CO₂/epoxide copolymerization reactions. Kinetic investigations indicate that the reaction occurs predominately in a bimetallic fashion in the absence of cocatalysts for both mono- and dinuclear complexes. The dinuclear system, therefore, maintains its activity even under highly diluted conditions of [PO]/[M] = 20000 at which the mononuclear system loses its efficiency. The effect of the nature and amount of added cocatalyst on catalytic performance was investigated as well, indicating a binary propagation mechanism both in mononuclear and dinuclear systems in the presence of cocatalysts.

Original language	English
Pages (from-to)	9508-9516
Number of pages	9
Journal	Macromolecules
Volume	44
Issue number	24
DOIs	https://doi.org/10.1021/ma201387f
State	Published - 27 Dec 2011

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title = "Kinetic and mechanistic investigation of mononuclear and flexibly linked dinuclear complexes for copolymerization of CO2 and epoxides",

abstract = "Mono- and dinuclear salphen-type complexes were developed and investigated in CO2/epoxide copolymerization reactions. Kinetic investigations indicate that the reaction occurs predominately in a bimetallic fashion in the absence of cocatalysts for both mono- and dinuclear complexes. The dinuclear system, therefore, maintains its activity even under highly diluted conditions of [PO]/[M] = 20000 at which the mononuclear system loses its efficiency. The effect of the nature and amount of added cocatalyst on catalytic performance was investigated as well, indicating a binary propagation mechanism both in mononuclear and dinuclear systems in the presence of cocatalysts.",

author = "Stephan Klaus and Vagin, \{Sergei I.\} and Lehenmeier, \{Maximilian W.\} and Peter Deglmann and Brym, \{Anna K.\} and Bernhard Rieger",

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T1 - Kinetic and mechanistic investigation of mononuclear and flexibly linked dinuclear complexes for copolymerization of CO2 and epoxides

AU - Klaus, Stephan

AU - Vagin, Sergei I.

AU - Lehenmeier, Maximilian W.

AU - Deglmann, Peter

AU - Brym, Anna K.

AU - Rieger, Bernhard

PY - 2011/12/27

Y1 - 2011/12/27

N2 - Mono- and dinuclear salphen-type complexes were developed and investigated in CO2/epoxide copolymerization reactions. Kinetic investigations indicate that the reaction occurs predominately in a bimetallic fashion in the absence of cocatalysts for both mono- and dinuclear complexes. The dinuclear system, therefore, maintains its activity even under highly diluted conditions of [PO]/[M] = 20000 at which the mononuclear system loses its efficiency. The effect of the nature and amount of added cocatalyst on catalytic performance was investigated as well, indicating a binary propagation mechanism both in mononuclear and dinuclear systems in the presence of cocatalysts.

AB - Mono- and dinuclear salphen-type complexes were developed and investigated in CO2/epoxide copolymerization reactions. Kinetic investigations indicate that the reaction occurs predominately in a bimetallic fashion in the absence of cocatalysts for both mono- and dinuclear complexes. The dinuclear system, therefore, maintains its activity even under highly diluted conditions of [PO]/[M] = 20000 at which the mononuclear system loses its efficiency. The effect of the nature and amount of added cocatalyst on catalytic performance was investigated as well, indicating a binary propagation mechanism both in mononuclear and dinuclear systems in the presence of cocatalysts.

UR - https://www.scopus.com/pages/publications/84255189071

U2 - 10.1021/ma201387f

DO - 10.1021/ma201387f

M3 - Article

AN - SCOPUS:84255189071

SN - 0024-9297

VL - 44

SP - 9508

EP - 9516

JO - Macromolecules

JF - Macromolecules

IS - 24

ER -

Kinetic and mechanistic investigation of mononuclear and flexibly linked dinuclear complexes for copolymerization of CO₂ and epoxides

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