논문 상세보기
pp.147-156
목적: 본 연구는 하이드로젤 콘택트렌즈 재료에 iron (Ⅱ) phthalocyanine와 magnesium phthalocynin을 첨가하여 친수성 안의료용 콘택트렌즈를 중합한 후 물리적 및 광학적 특성을 평가하였다. 방법: 첨가제를 HEMA, NVP, MMA와 함께 공중합하였으며, 교차결합제로 EGDMA를 사용하였다. 또한 개시제로 AIBN을 사용하였다. 그리고 제조된 렌즈의 물리적, 광학적 특성을 평가하기 위해 굴절률, 함수율, 분광투과율, 인장강도 및 접촉각을 측정하였다. 또한 제조된 고분자의 자외선 차단성과 친수성 착색 콘택트렌즈의 기능성 염료로서의 활용도를 알아보았다. 결과: 제조된 콘택트렌즈의 물리적 특성을 측정한 결과 굴절률은 1.4320∼1.4330, 함수율은 38.53∼39.34%, UV-B 투과율은 33.8∼65.5%, 접촉각은 53.89∼64.45° 그리고 인장강도는 0.2790∼0.3137 kgf의 범위로 각각 측정되었다. 측정결과 magnesium phthalocyanine와 iron (Ⅱ) phthalocyanine의 첨가가 자외선의 투과율을 감소시키는 것으로 나타났으며, reference와 비교하여 접촉각은 증가되는 것으로 나타났다. 결론: Iron (Ⅱ) phthalocyanine와 magnesium phthalocyanine를 첨가한 고분자의 경우, 함수율과 굴절률을 변화시키지 않으면서 자외선을 차단할 수 있는 재료로 활용될 수 있을 것으로 기대된다.
Purpose: In the study, the physical and optical characteristics of ophthalmic hydrophilic contact lens polymerized with addition of magnesium phathalocyanine in the basic hydrogel contact lens material were evaluated. Methods: Ophthalmic copolymer containing HEMA, NVP, MMA was coplymerized with the cross-linker EGDMA and the initiator AIBN. Also, the physical and optical properties such as refractive index, water content, spectral transmittance, tensile strength and contact angle of produced contact lenses were measured. Also, the physical and optical characteristics of the produced polymers were analyzed to investigate the UV&IR-blocking capabilities of these functional ophthalmic dyes and their applicability as materials for tinted ophthalmic hydrogel contact lenses Results: The measurement of physical characteristics showed refractive index, water content, UV-B transmittance, contact angle and tensile strength were in the range of 1.4328∼1.4330, 38.53∼39.34%, 33.8∼65.5%, 53.89∼64.45° and 0.2790∼0.3137 kgf, respectively. The transmittance for UV light was reduced significantly in combinations added magnesium phthalocyanine and iron (Ⅱ) phthalocyanine. The addition of magnesium phthalocyanine and iron (Ⅱ) phthalocyanine was also shown to increase the contact angle of hydrogel contact lenses, compared to the reference sample. Conclusions: The polymer containing iron (Ⅱ) phthalocyanine and magnesium phthalocyanine is expected to be used as a material for UV-block hydrogel contact lens without affecting refractive index and water content.
