Das, Chinmay, Elguweri, Muhiddin, Jiang, Peijun et al. (8 more authors) (2019) Controlled Synthesis, Characterization, and Flow Properties of Ethylene–Diene Copolymers. Macromolecular Reaction Engineering. 1800071. ISSN 1862-8338
Abstract
The flow response of branched entangled resins is dominated by the branching topology of the constituent molecules, a property that is not directly accessible using experimental analytical tools for industrially relevant complex resins. In this paper, the controlled terpolymerization of ethylene, 1,9-decadiene, and either hexene or octene in a continuous stirred tank reactor with a metallocene catalyst, is reported. The synthesized samples are characterized extensively with various analytical tools and their rheological properties are measured with small amplitude oscillatory shear and start-up uniaxial extension experiments. A model is developed for the polymerization process with the mass balance during synthesis providing strong constraints on the rate constants. In silico ensembles of molecules, generated via Monte Carlo sampling, are used to reproduce the experimental results. The computer model allows us to infer the detailed branching structure of the molecules and to predict the optimum range of reactor conditions for this synthesis.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © John Wiley Ltd., 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Keywords: | flow modifier,long-chain branching,non-conjugated diene terpolymer,polymer synthesis,rheology |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > York Institute for Materials Research The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number EPSRC EP/N031431/2 |
Depositing User: | Pure (York) |
Date Deposited: | 15 Mar 2019 13:00 |
Last Modified: | 16 Oct 2024 15:31 |
Published Version: | https://doi.org/10.1002/mren.201800071 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1002/mren.201800071 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:143730 |