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Preparation of Semifluorinated Poly(meth)acrylates by Improved Photo-Controlled Radical Polymerization without the Use of Fluorinated RAFT Agent: Facilitating Surface Fabrication with Fluorinated Materials

Abstract

Fluorinated polymers have attracted increasing interests in broad areas, and the access to such polymers with low-cost agents and simple conditions would offer improved application opportunities for both academia and industry. An efficient preparation of a variety of semifluorinated poly(meth)acrylates without the use of fluorinated iniferter/initiator or solvent via the photo-controlled radical polymerization is herein reported. The polymerizations can be efficiently switched between “ON” and “OFF” both in the presence and absence of a photoredox catalyst in response of visible light while maintaining a linear increase in polymer molar mass with conversion and first order kinetics. As demonstrated with gel permeation chromatography analysis and kinetic investigations, the catalyzed photopolymerizations provide polymers with narrower molar mass distributions, shorter induction times and higher conversions in comparison with catalyst-free reactions, representing a reliable and efficient synthetic approach starting off from fluorine-free agents. The high chain-end fidelity of the polymer was confirmed with MALDI-TOF-MS measurement and chain-extension experiment. Furthermore, the method using fluorine-free iniferters has facilitated surface fabrication with fluoropolymers, providing highly hydrophobic materials. These results illustrate the simplicity and utility of the light-controlled polymerization of semifluorinated monomers.

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Publication details

The article was received on 03 Jul 2018, accepted on 11 Jul 2018 and first published on 11 Jul 2018


Article type: Paper
DOI: 10.1039/C8PY00990B
Citation: Polym. Chem., 2018, Accepted Manuscript
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    Preparation of Semifluorinated Poly(meth)acrylates by Improved Photo-Controlled Radical Polymerization without the Use of Fluorinated RAFT Agent: Facilitating Surface Fabrication with Fluorinated Materials

    M. Chen, Q. Quan and H. gong, Polym. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8PY00990B

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