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Polymers 2018, 10(9), 979; https://doi.org/10.3390/polym10090979

A Novel Synthetic UV-Curable Fluorinated Siloxane Resin for Low Surface Energy Coating

1
School of Material Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China
2
Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA 90095, USA
3
Department of Orthopaedic Surgery, University of California Los Angeles, Los Angeles, CA 90095, USA
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 20 July 2018 / Revised: 27 August 2018 / Accepted: 28 August 2018 / Published: 3 September 2018
(This article belongs to the Special Issue Siloxane-Based Polymers)
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Abstract

Low surface energy materials have attracted much attention due to their properties and various applications. In this work, we synthesized and characterized a series of ultraviolet (UV)-curable fluorinated siloxane polymers with various fluorinated acrylates—hexafluorobutyl acrylate, dodecafluoroheptyl acrylate, and trifluorooctyl methacrylate—grafted onto a hydrogen-containing poly(dimethylsiloxane) backbone. The structures of the fluorinated siloxane polymers were measured and confirmed by proton nuclear magnetic resonance and Fourier transform infrared spectroscopy. Then the polymers were used as surface modifiers of UV-curable commercial polyurethane (DR-U356) at different concentrations (1, 2, 3, 4, 5, and 10 wt %). Among three formulations of these fluorinated siloxane polymers modified with DR-U356, hydrophobic states (91°, 92°, and 98°) were obtained at low concentrations (1 wt %). The DR-U356 resin is only in the hydrophilic state at 59.41°. The fluorine and siloxane element contents were investigated by X-ray photoelectron spectroscopy and the results indicated that the fluorinated and siloxane elements were liable to migrate to the surface of resins. The results of the friction recovering assays showed that the recorded contact angles of the series of fluorinated siloxane resins were higher than the original values after the friction-annealing progressing. View Full-Text
Keywords: ultraviolet (UV) curable coatings; low surface energy materials; fluorinated siloxane resin ultraviolet (UV) curable coatings; low surface energy materials; fluorinated siloxane resin
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zhu, C.; Yang, H.; Liang, H.; Wang, Z.; Dong, J.; Xiong, L.; Zhou, J.; Ke, J.; Xu, X.; Xi, W. A Novel Synthetic UV-Curable Fluorinated Siloxane Resin for Low Surface Energy Coating. Polymers 2018, 10, 979.

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