Abstract
Methyl methacrylate and butyl acrylate were copolymerized in the presence of C = C containing silane coupling agent and further grafted with hydroxyl silicone oil (HSO) in butyl acetate. The conversion and grafting degree of HSO were determined by a weighing method. The structure and the surface properties of silicone-grafted acrylic copolymer coatings were characterized by Fourier transform infrared spectroscopy (FTIR), CP/MAS, 13C-NMR, optical contact angle (OCA), and X-ray photoelectron spectrometer (XPS). It was found that a relatively high grafting degree of HSO onto acrylic copolymer can be obtained by using acetic acid as the catalyst and methacryloxypropyltrimethoxysilane (MAPMS) as the silane coupling agent. The HSO graft can effect a decrease in the surface free energy of polymer films and improve the hydrophobic property of acrylic copolymer coating.
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