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KMID : 1059520100540010105
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Journal of the Korean Chemical Society
2010 Volume.54 No. 1 p.105 ~ p.109
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Physical Characterization and Contact Lens Application of Polymer Produced with Propylene Glycol Additive
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Kim Tae-Hun
Sung A-Young
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Abstract
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HEMA (2-hydroxyethyl methacrylate), EGDMA (ethylene glycol dimethacrylate) and propylene glycol was copolymerized in the presence of AIBN (azobisisobutyronitrile) initiator in a mould. The physical properties of the contact lens were measured. The water content of 37.06 ~ 38.71%, refractive index of 1.492 ~ 1.432, visible transmittance of 89.4 ~ 91.5%, tensile strength of 0.1416 ~ 0.2302 kgf, and contact angle of 38.60~53.53° were obtained. Therefore, the contact lens material produced using propylene glycol as an additive satisfied the basic physical properties required for contact lenses application. It is interesting to note that an increase in wettability and tensile strength while having no significant changes in water content.
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KEYWORD
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Propylene glycol, Contact angle, Wettability, Tensile strength
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