논문 상세보기
pp.127-137
목적: 본 연구는 이소시아네이트 그룹을 기존의 하이드로젤 콘택트렌즈 재료와 공중합 하였으며, 제조된 콘택트렌즈의 물리적 특성을 비교하고, 내구성이 높은 콘택트렌즈 고분자로서의 활용성을 알아보았다. 방법: 2-Fluorophenethyl isocyanate, 4-fluorophenethyl isocyanate, furfuryl isocyanate를 가교제인 ethylene glycol dimethacrylate를 사용하여 2-hydroxyethyl methacrylate, methyl methacrylate, methacrylic acid와 공중합 하였으며, 개시제로는 azobisiobutyonitrile를 사용하였다. 또한 제조된 렌즈의 물리적 특성을 평가하기 위해 함수율, 굴절률, 접촉각, 분광투과율, 인장강도 등을 측정하였다. 결과: 생성된 고분자 재료의 물리적 특성을 측정한 결과 함수율 13.29~31.34%, 굴절률 1.454~1.499, 가시광선 투과율 78.0~91.5%를 나타내었다. 또한, 이소시아네이트 그룹의 첨가 비율이 증가할수록 굴절률 은 증가하였으며, 함수율은 감소하였다. Furfuryl isocyanate를 첨가한 공중합체의 경우, UV-B 3.0~84.0%, UV-A 13.0~68.0%의 투과율을 나타내어 자외선 차단 효과를 갖는 것으로 나타났다. 결론: 본 실험결과로 볼 때 생성된 공중합체는 내구성이 높은 하이드로젤 콘택트렌즈 재료로 사용될 수 있을 것으로 판단된다.
Purpose: In this study, we compared the copolymer produced with the isocyanate group with previous hydrogel contact lens materials and measured the properties of the produced contact lens in order to experiment whether the material is suitable for contact lens materials with high durability. Methods: This study used 2-fluorophenethyl isocyanate, 4-fluorophenethyl isocyanate and furfuryl isocyanate with the cross-linker EGDMA (ethylene glycol dimethacrylate), HEMA (2-hydroxyethyl methacrylate), MMA (methyl methacrylate), MA (methacrylic acid) and the initiator AIBN (azobisiobutyonitrile) for coplymerization. We measured physical properties such as water content, refractive index, contact angel, spectral transmittance, and tensile strength of produced contact lenses. Results: Measurement of the physical characteristics of the copolymerized material showed that the water content is 13.29~31.34%, refractive index 1.454~1.499, visible ray transmittance 78.0~91.5%. Also, measurements showed that the refractive index increased while the water content decreased as the ratio of isocyanate group increased. And in cases of copolymer with furfuryl isocyanate the results showed transmittance of 3.0~84.0%, 13.0~68.0% respectively for UV-B and UV-A showing that they have UV-blocking effects. Conclusions: Based on the results of this study, the produced copolymer can be estimated to be suitable for use as hydrogel contact lens material for high durability.
