Abstract
본 연구는 4-fluorostyrene을 교차결합제인 EGDMA (ethylene glycol dimethacrylate)와 HEMA (2-hydroxyethyl methacrylate) 그리고 개시제인 AIBN (azobisisobutyronitrile)과 함께 공중합 하였다. 생성된 고분자의 물리적 특성을 측정한 결과, 함수율 19.98 ~ 31.08%, 굴절률 1.443 ~ 1.475, 가시광선 투과율 87 ~ 93%, 인장강도 0.246 ~ 0.311 kgf 그리고 접촉각의 경우 54.14 ~ <TEX>$66.95^{\circ}$</TEX> 범위의 분포를 나타내었다. 4-Fluorostyrene 첨가한 콘택트렌즈 재료의 경우, 기본적인 콘택트렌즈의 물성을 만족하였고, styrene 비교하여 함수율의 큰 변화를 나타내지 않으면서도 습윤성과 굴절률을 증가시키는 결과를 나타내었다. 본 실험결과로 볼 때 생성된 공중합체는 고 굴절률과 습윤성을 지닌 콘택트렌즈 재료로 사용될 수 있을 것으로 판단된다. This study used 4-fluorostyrene with the cross-linker EGDMA (ethylene glycol dimethacrylate), HEMA (2-hydroxyethyl methacrylate) and the initiator AIBN (azobisisobutyronitrile) for copolymerization. Measurement of the physical properties of the copolymerized polymer showed that the water content was 19.98 ~ 31.08%, refractive index 1.443 ~ 1.475, visible transmittance 87 ~ 93% and tensile strength 0.246 ~ 0.311 kgf while the contact angle showed a distribution between <TEX>$54.14^{\circ}$</TEX> and <TEX>$66.95^{\circ}$</TEX>. Therefore, the ophthalmic material produced using 4-fluorostyrene satisfied the basic physical properties required for contact lenses and also showed an increase in wettability and refractive index while having no significant change in water content with relation to styrene. Based on the results of this study, the produced copolymer is suitable for use as a material to high refractive index and wettability contact lenses.
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