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http://dx.doi.org/10.5012/jkcs.2010.54.3.317

Synthesis and Physical Properties of Ophthalmic Copolymer Containing 4-fluorostyrene  

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.3, 2010 , pp. 317-322 More about this Journal
Abstract
This study used 4-fluorostyrene with the cross-linker EGDMA (ethylene glycol dimethacrylate), HEMA (2-hydroxyethyl methacrylate) and the initiator AIBN (azobisisobutyronitrile) for copolymerization. Measurement of the physical properties of the copolymerized polymer showed that the water content was 19.98 ~ 31.08%, refractive index 1.443 ~ 1.475, visible transmittance 87 ~ 93% and tensile strength 0.246 ~ 0.311 kgf while the contact angle showed a distribution between $54.14^{\circ}$ and $66.95^{\circ}$. Therefore, the ophthalmic material produced using 4-fluorostyrene satisfied the basic physical properties required for contact lenses and also showed an increase in wettability and refractive index while having no significant change in water content with relation to styrene. Based on the results of this study, the produced copolymer is suitable for use as a material to high refractive index and wettability contact lenses.
Keywords
4-Fluorostyrene; Contact angle; Wettability; Refractive index;
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