Olefin polymerisation catalysts: when perfection is not enough

Despite decades of thorough mechanistic investigations, it is still hard to predict the activity of a novel olefin polymerisation catalyst, even when the precursor is a well-defined molecular entity. In the present study, we highlight the crucial importance of activation entropy on the polymerisatio...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2015-07, Vol.44 (27), p.1234-12311
Main Authors: Cipullo, R, Melone, P, Yu, Y, Iannone, D, Busico, V
Format: Article
Language:English
Subjects:
Activation analysis
Activation energy
Activation entropy
Catalysis
Catalysts
Free energy
Olefins
Polymerization
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Summary:Despite decades of thorough mechanistic investigations, it is still hard to predict the activity of a novel olefin polymerisation catalyst, even when the precursor is a well-defined molecular entity. In the present study, we highlight the crucial importance of activation entropy on the polymerisation rate and how weak interactions of the catalytic species with electron donating species in the reaction pool can ultimately lower the activation free energy. Despite decades of thorough mechanistic investigations, it is still hard to predict the activity of a novel olefin polymerisation catalyst, even when the precursor is a well-defined molecular entity. Kinetic studies using quenched-flow methods can help to understand why.
ISSN:1477-9226
1477-9234
DOI:10.1039/c5dt01514f