4.7 Article

Optimization of microwave plasma treatment conditions on polydimethylsiloxane films for further surface functionalization

期刊

EUROPEAN POLYMER JOURNAL
卷 150, 期 -, 页码 -

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2021.110416

关键词

PDMS; Microwave plasma; Surface functionalization; Thiol-ene polymerization

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The surface of Polydimethylsiloxane (PDMS) was functionalized through a three-step process involving microwave plasma treatment, reaction with mercaptosilanes, and thiol-ene photopolymerization. The purpose of using a bio-based monomer was to give antibacterial and antifouling properties to the PDMS surface. Grafting and photopolymerization were successfully confirmed through various analytical methods, particularly X-Ray Photoelectron Spectroscopy.
Polydimethylsiloxane (PDMS) was surface functionalized by a 3-steps process. Firstly, the PDMS surface was activated by means of a microwave Ar/O-2 plasma treatment, that was optimized in this paper. Secondly, the activated surface reacted with mercaptosilanes and finally a thiol-ene photopolymerization of a vanillin derivative monomer was performed. The bio-based monomer was used with the aim of giving antibacterial and antifouling properties to the PDMS surface. Grafting and photopolymerization were successfully evidenced by different analytical means and especially X-Ray Photoelectron Spectroscopy.

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