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KMID : 1059520110550020283
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Journal of the Korean Chemical Society
2011 Volume.55 No. 2 p.283 ~ p.289
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Polymerization and Characterization of Ophthalmic Polymer Containing Glycerol dimethacrylate with High Wettability
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Cho Seon-Ahr
Kim Tae-Hun
Sung A-Young
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Abstract
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This study used glycerol dimethacrylate with the cross-linker EGDMA (ethylene glycol dimethacrylate), HEMA (2-hydroxyethyl methacrylate), MMA (methyl methacrylate), MA (methacrylic acid) and the initiator AIBN (azobisisobutyronitrile) for copolymerization. Measurement of the physical properties of the copolymerized polymer showed that the water content was 22~32%, refractive index was 1.442~1.463 and visible ray transmittance 90.0~90.5% while the contact angle showed a distribution between 56 and . Also, the measurement showed that the decreased amount of contact angle of the copolymer measured using the sessile drop method ranged between and with increase of glycerol dimethacrylate. Based on the results of this study, the produced copolymer is suitable for use as a material to high wettability ophthalmic lenses.
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KEYWORD
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glycerol dimethacrylate, 3(trimethoxysilyl)propyl methacrylate, contact angle, wettability
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