ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 55, Number 2
JKCSEZ 55(2)
April 20, 2011 

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 65o. Also, the measurement showed that the decreased amount of contact angle of the copolymer measured using the sessile drop method ranged between 9.89o and 18.99o 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.