Preparation of fluorinated methacrylate/clay nanocomposite via in‐situ polymerization: Characterization,structure, and properties |
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| Authors: | Mohamed Karamane Mustapha Raihane Mehmet Atilla Tasdelen Tamer Uyar Mohamed Lahcini Mohamed Ilsouk Yusuf Yagci |
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| Institution: | 1. Laboratory of Organometallic and Macromolecular Chemistry‐Composites Materials Faculty of Sciences and Technologies, Cadi‐Ayyad University, Marrakech, Morocco;2. Department of Polymer Engineering Faculty of Engineering, Yalova University, Yalova, Turkey;3. UNAM‐Institute of Materials Science and Nanotechnology Bilkent University, Ankara, Turkey;4. Department of Chemistry Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul, Turkey;5. Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia |
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| Abstract: | Novel fluorinated coating containing well‐dispersed silicate nanolayers is successfully produced via in‐situ free radical polymerization of 2,2,2‐trifluoroethyl methacrylate in the presence of vinylbenzyl‐functionalized montmorillonite with different loading. The organic modification of sodium montmorillonite is achieved through an ion exchange reaction with triphenylvinylbenzylphosphonium chloride as surfactant prepared before use by reaction with vinylbenyl chloride and phosphine. The following in‐situ polymerization in the presence of organomodified clay leads to fluorinated nanocomposites with of partially exfoliated and intercalated morphologies, as determined via XRD and TEM analysis. The nanoscale dispersion of clay layers is also evidenced by thermal analysis; a moderate decrease of the glass transition temperature about 2–8 °C compared to their virgin PMATRIF and an improvement of their thermal stability as evidenced by TGA. The wettability of the nanocomposite films is also studied by contact angle measurements with water. The incorporation of organomodified clays not only increases the hydrophobicity of the fluorinated polymers but also improves the surface properties of obtained nanocomposites. Compared the virgin homopolymer, the mechanical properties of the nanocomposites are reduced by addition of organomodifed clay at temperature from 30 to 60 °C, whereas this trend is gradually decreased at higher temperature. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017 , 55, 411–418 |
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| Keywords: | nanocomposites organoclay radical polymerization |
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