Manufacturing and physical properties of sol-gel hybrid contact lenses using new silane sol made using a Thiol-ene click reaction
발표자
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초록
내용
Commercial silicone lenses with high oxygen permeability are estimated to be materials copolymerized by adding 3-Methacryloyloxypropyltris(TRIS) to the composition of various acrylic monomers based on 2-hydroxyethylmethylate(HEMA). Silicon in TRIS exists in the form of siloxane. Such monomers with bulky siloxane groups provide a large free volume to contact lenses, and also have high diffusivity and solubility in oxygen gases due to the variable covalency of silicon atoms. In this study, a polyfunctional silanol was synthesized by reacting a polyfunctional vinylsilane compound with a trialkoxysilane compound with a thiol group using a thiol-ene click reaction. Accordingly, an acrylic-silicone hybrid contact lens was prepared by performing sol-gel reaction with HEMA and 3-(Trimethoxysilyl) propylmethacrylate(TMSPMA). Changes in physical properties according to the silane sol content were observed by measuring the oxygen permeability, moisture content, and contact angle of these lenses.