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Understanding copolymerisation kinetics for the design of functional copolymers via free radical polymerisation

Boulding, Natasha A.; Millican, Jonathan M.; Hutchings, Lian R.

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Authors

Natasha A. Boulding

Jonathan M. Millican



Abstract

Determining the monomer sequence distribution of copolymers is important when correlating copolymer molecular structure (random, gradient etc.) to macroscopic/material properties. We report here the relative monomer reactivities for the copolymerisation of methyl methacrylate (MMA) with functional monomers – poly(ethylene glycol) methyl ether methacrylate (PEGMEM Mn 500 g mol−1), acetonide-protected dopamine methacrylamide (ADMA), methacrylic acid (MAA) and glycidyl methacrylate (GMA) – to provide information on monomer sequence distribution and compositional drift. Reactivity ratios were calculated, using non-linear least squares regression analysis, in the cases of the free radical copolymerisation of MMA with (i) PEGMEM (rMMA = 1.17 rPEGMEM = 0.62) and (ii) ADMA (rMMA = 2.21 rADMA = 0.17). Additionally, monomer feed depletion as a function of total monomer conversion was monitored by 1H NMR spectroscopy for a series of batch co- and terpolymerisations. This approach offers detailed insight into monomer compositional drift and copolymerisation kinetics. Such information provides a platform for the design of copolymers with specific desired properties e.g. adhesion, solubility or interfacial activity.

Citation

Boulding, N. A., Millican, J. M., & Hutchings, L. R. (2019). Understanding copolymerisation kinetics for the design of functional copolymers via free radical polymerisation. Polymer Chemistry, 10(41), 5665-5675. https://doi.org/10.1039/c9py01294j

Journal Article Type Article
Acceptance Date Oct 7, 2019
Online Publication Date Oct 8, 2019
Publication Date Nov 7, 2019
Deposit Date Oct 23, 2019
Publicly Available Date Mar 28, 2024
Journal Polymer Chemistry
Print ISSN 1759-9954
Electronic ISSN 1759-9962
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 10
Issue 41
Pages 5665-5675
DOI https://doi.org/10.1039/c9py01294j

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