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http://dx.doi.org/10.5012/jkcs.2010.54.6.755

Study on the Ophthalmic Lens Materials with High Refractive Index Containing Vinylanisole  

Kim, Tae-Hun (Department of Ophthalmic Optics, Daebul University)
Sung, A-Young (Department of Ophthalmic Optics, Daebul University)
Publication Information
Journal of the Korean Chemical Society / v.54, no.6, 2010 , pp. 755-760 More about this Journal
Abstract
This study used 3-vinylanisole and 4-vinylanisole with the cross-linker EGDMA (ethylene glycol dimethacrylate), HEMA (2-hydroxyethyl methacrylate), MMA (methyl methacrylate), NVP (N-vinyl-2-pyrrolidone) and the initiator AIBN (azobisisobutyronitrile) for copolymerization. Measurement of the physical characteristics of the copolymerized material showed that the refractive index is 1.4496 - 1.4894, water content 22.93 - 35.50%, visible transmittance 88.8 - 90.8%. Also, measurements showed that the refractive index increased while the water content decreased as the ratio of 3-vinylanisole and 4-vinylanisole increased. And in cases of copolymer with 3-vinylanisole, 4-vinylanisole (added 15%) the results showed transmittance of 52.8 - 82.2%, 13.2 - 26.2% respectively for UV-A and UV-B showing that they have UV-blocking effects. Based on the results of this study, the produced copolymer can be estimated to be suitable for use as ophthalmic lens material for high refractive index and UV- blocking effects.
Keywords
3-Vinylanisole; 4-Vinylanisole; Refractive index; Optical transmissibility;
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Times Cited By KSCI : 4  (Citation Analysis)
Times Cited By SCOPUS : 4
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