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Issue 4, 2018
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Generation of a carbon dots/ammonium persulfate redox initiator couple for free radical frontal polymerization

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Abstract

We report a new redox initiator couple of ammonium persulfate (APS)/carbon dots (CDs) with high initiation efficiency used in frontal polymerization (FP). The CDs also served as fluorescent reagents, and had good dispersion and a relatively high absolute quantum yield (>60%). The initiation efficiency and possible mechanism of CDs/peroxydisulfate (S2O82−) initiators were investigated. The electron transfer between the CDs and S2O82− made decomposition of the latter into free radicals easier. Besides, electron transfer occurred between the CDs and vinyl monomers, prompting the CDs to be applied to initiate monomers alone. Therefore, the combined effects of the CDs and APS made vinyl monomers more prone to be triggered in FP, thereby lowering the reaction temperature considerably. This research might provide a promising avenue to discover other polymerization initiators with high efficiency for the synthesis of versatile materials.

Graphical abstract: Generation of a carbon dots/ammonium persulfate redox initiator couple for free radical frontal polymerization

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Publication details

The article was received on 22 Nov 2017, accepted on 20 Dec 2017 and first published on 21 Dec 2017


Article type: Paper
DOI: 10.1039/C7PY01969F
Citation: Polym. Chem., 2018,9, 420-427
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    Generation of a carbon dots/ammonium persulfate redox initiator couple for free radical frontal polymerization

    X. Du, J. Shen, J. Zhang, L. Ling, C. Wang and S. Chen, Polym. Chem., 2018, 9, 420
    DOI: 10.1039/C7PY01969F

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