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제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Effect of Styrene-PVP Interaction on the Properties of Silicone Hydrogel Lens

2019년 2월 13일 10시 47분 58초
MAT.P-482 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 19일 (금요일) 11:00~12:30
Material Chemistry
저자 및
Min-Jae Lee, A-Young Sung*
Department of Optometry, Daegu Catholic University, Korea
This research was carried out in order to analyze the effect of Styrene-PVP interaction on the properties of silicone hydrogel lens. Styrene group and PVP (Polyvinylpyrrolidone) were used as additives for the basic combination containing silicone monomer, TSMA (trimethylsilyl methacrylate) and DMA (n,n-dimethylacrylamide) added to the mix at ratios of 1~10%. The silicone hydrogel lens was produced by a cast-mold method. The polymerized lens sample was hydrated in a 0.9% saline for 24 hours before the optical and physical characteristics of the lens were measured. Measurement of the physical characteristics of the produced material showed that the refractive index is 1.3682~1.4321, water content 77.11~45.73%, visible light transmittance 95.14~88.20%, and tensile strength 0.0652~0.3113kgf. The results showed the decrease of refractive index as the ratio of additives and the water content also decreased. The result of the stabilization test of polymerization showed increase of extractables as the ratio of additives, but the difference was not significant in all the samples, so it can be judged that the stabilization of the polymer was maintained. Therefore, the interaction of styrene and PVP should be in consideration of the effect on the physical properties of silicone hydrogel lens.