Synthesis and Characterization of Ethylene Glycol-Polydimethylsiloxane-Polybutyl Methacrylate Copolymer

Abstract — In this article, the octamethylcyclotetrasiloxane is introduced into ethylene glycol. The reaction is terminated using acrylic acid to obtain a linear polydimethylsiloxane intermediate comprising double bonds at the ends. The targeted copolymer is prepared by copolymerizing polydimethylsiloxane intermediate and butyl methacrylate. Additionally, blended-porous film is prepared by adding the copolymer to the cyclodextrin copolymer. The results reveal that the thermal stability of the copolymer increases with the increase of the polydimethylsiloxane content. The ethanol solution of the copolymer of a certain formulation has temperature sensitivity. The contact angle hysteresis of cyclodextrin copolymer is larger on the inclined surface at five degrees from the horizontal, but the blended-porous films all have low contact angle hysteresis, and the minimum contact angle hysteresis decreased to 2°. The main reason for the observed difference is that the presence of the copolymer makes the surface morphology of the film changed greatly. The blended-porous films have a waterproof and easy-to-slide surface.