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Journal of the Korean Chemical Society (JKCS)

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

Polymerization and Characterization of Ophthalmic Polymer Containing Glycerol dimethacrylate with High Wettability

Glycerol dimethacrylate를 포함한 고습윤성 안의료용 고분자의 중합 및 특성
Seon Ahr Cho, Tae Hun Kim, A Young Sung*

조선아, 김태훈, 성아영*
glycerol dimethacrylate, 3(Trimethoxysilyl)propyl methacrylate, 접촉각, 습윤성 , glycerol dimethacrylate, 3(trimethoxysilyl)propyl methacrylate, contact angle, wettability
본 연구는 glycerol dimethacrylate를 교차결합제인 EGDMA(ethylene glycol dimethacrylate)와 HEMA(2-hydroxyethyl methacrylate), MMA(methyl methacrylate), MA(methacrylic acid) 그리고 개시제인 AIBN(azobisisobutyronitrile)과 함께 공중 합 하였다. 생성된 고분자의 물리적 특성을 측정한 결과, 함수율 22~32%, 굴절률 1.442~1.463, 가시광선 투과율 90.0~90.5% 그리고 접촉각의 경우 56~65o 범위의 분포를 나타내었다. 또한 sessile drop method에 의한 공중합체의 접촉각을 측정한 결 과 glycerol dimethacrylate의 함량이 증가할수록 9.89~18.99o 감소한 결과를 보였다. 본 실험결과로 볼 때 생성된 공중합체 는 습윤성이 높은 안의료용 렌즈 재료로 사용될 수 있을 것으로 판단된다.

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.

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