Controlled RAFT polymerization facilitated by a nanostructured enzyme mimic

Fu, Q; Ranji-Burachaloo, H; Liu, M; McKenzie, TG; Tan, S; Reyhani, A; Nothling, MD; Dunstan, DE; Qiao, GG

Controlled RAFT polymerization facilitated by a nanostructured enzyme mimic

Fu, Q

Ranji-Burachaloo, H Liu, M McKenzie, TG Tan, S Reyhani, A Nothling, MD Dunstan, DE Qiao, GG

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Publisher:: ROYAL SOC CHEMISTRY
Publication Type:: Journal Article
Citation:: Polymer Chemistry, 2018, 9, (35), pp. 4448-4454
Issue Date:: 2018-09-21

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Field	Value	Language
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.contributor.author	Ranji-Burachaloo, H
dc.contributor.author	Liu, M
dc.contributor.author	McKenzie, TG
dc.contributor.author	Tan, S
dc.contributor.author	Reyhani, A
dc.contributor.author	Nothling, MD
dc.contributor.author	Dunstan, DE
dc.contributor.author	Qiao, GG
dc.date.accessioned	2022-09-03T07:11:50Z
dc.date.available	2022-09-03T07:11:50Z
dc.date.issued	2018-09-21
dc.identifier.citation	Polymer Chemistry, 2018, 9, (35), pp. 4448-4454
dc.identifier.issn	1759-9954
dc.identifier.issn	1759-9962
dc.identifier.uri	http://hdl.handle.net/10453/161257
dc.description.abstract	Recent reports have revealed the potential of nanostructured materials to display enzyme-like activity for a broad range of applications. In this study, a glycine modified metal-organic framework (MOF) MIL-53(Fe) composite was utilized as an enzyme (e.g. peroxidase) mimic for the generation of reactive oxygen species (ROS) from hydrogen peroxide. The resultant hydroxyl radicals can act as initiators in the presence of chain transfer agents and monomers in aqueous or organic media, allowing for controlled polymerization via reversible addition-fragmentation chain transfer (RAFT). The polymer products present controllable molecular weights, narrow polymer dispersities and high 'livingness' as revealed by a chain extension experiment and MALDI-ToF analysis. By continuously supplying hydrogen peroxide to the MOF peroxidase mimic, ultrahigh molecular weight polyacrylamides (Mn > 1 MDa) of low dispersity ( < 1.25) were also obtained. By incorporating low cost, highly stable and easily isolated peroxidase-mimicking catalysts, glycine modified MIL-53(Fe) represents a versatile synthetic strategy to produce well-defined polymers from both hydrophilic and hydrophobic monomers.
dc.language	English
dc.publisher	ROYAL SOC CHEMISTRY
dc.relation.ispartof	Polymer Chemistry
dc.relation.isbasedon	10.1039/c8py00832a
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0307 Theoretical and Computational Chemistry
dc.title	Controlled RAFT polymerization facilitated by a nanostructured enzyme mimic
dc.type	Journal Article
utslib.citation.volume	9
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0307 Theoretical and Computational Chemistry
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-03T07:11:48Z
pubs.issue	35
pubs.publication-status	Published
pubs.volume	9
utslib.citation.issue	35

Abstract:

Recent reports have revealed the potential of nanostructured materials to display enzyme-like activity for a broad range of applications. In this study, a glycine modified metal-organic framework (MOF) MIL-53(Fe) composite was utilized as an enzyme (e.g. peroxidase) mimic for the generation of reactive oxygen species (ROS) from hydrogen peroxide. The resultant hydroxyl radicals can act as initiators in the presence of chain transfer agents and monomers in aqueous or organic media, allowing for controlled polymerization via reversible addition-fragmentation chain transfer (RAFT). The polymer products present controllable molecular weights, narrow polymer dispersities and high 'livingness' as revealed by a chain extension experiment and MALDI-ToF analysis. By continuously supplying hydrogen peroxide to the MOF peroxidase mimic, ultrahigh molecular weight polyacrylamides (Mn > 1 MDa) of low dispersity ( < 1.25) were also obtained. By incorporating low cost, highly stable and easily isolated peroxidase-mimicking catalysts, glycine modified MIL-53(Fe) represents a versatile synthetic strategy to produce well-defined polymers from both hydrophilic and hydrophobic monomers.

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http://hdl.handle.net/10453/161257