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Issue 8, 2016
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Design, synthesis and RAFT polymerisation of a quinoline-based monomer for use in metal-binding composite microfibers

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Abstract

Metal-binding polymer fibres have attracted major attention for diverse applications in membranes for metal sequestration from waste waters, non-woven wound dressings, matrices for photocatalysis, and many more. This paper reports the design and synthesis of an 8-hydroxyquinoline-based zinc-binding styrenic monomer, QuiBoc. Its subsequent polymerisation by reversible addition–fragmentation chain transfer (RAFT) yielded well-defined polymers, PQuiBoc, of controllable molar masses (6 and 12 kg mol−1) with low dispersities (Đ, Mw/Mn < 1.3). Protected (PQuiBoc) and deprotected (PQuiOH) derivatives of the polymer exhibited a high zinc-binding capacity, as determined by semi-quantitative SEM/EDXA analyses, allowing the electrospinning of microfibres from a PQuiBoc/polystyrene (PS) blend without the need for removal of the protecting group. Simple “dip-coating” of the fibrous mats into ZnO suspensions showed that PQuiBoc/PS microfibres with only 20% PQuiBoc content had almost three-fold higher loadings of ZnO (29%) in comparison to neat PS microfibres (11%).

Graphical abstract: Design, synthesis and RAFT polymerisation of a quinoline-based monomer for use in metal-binding composite microfibers

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Publication details

The article was received on 01 Dec 2015, accepted on 05 Jan 2016 and first published on 11 Jan 2016


Article type: Paper
DOI: 10.1039/C5RA25551A
RSC Adv., 2016,6, 6598-6606

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    Design, synthesis and RAFT polymerisation of a quinoline-based monomer for use in metal-binding composite microfibers

    A. Isakova, O. Efremova, N. Pullan, L. Lüer and P. D. Topham, RSC Adv., 2016, 6, 6598
    DOI: 10.1039/C5RA25551A

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