|
|
| Type |
Poster Presentation |
| Area |
Polymer Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 18일 (목요일) 11:00~12:30 |
| Code |
POLY.P-30 |
| Subject |
UV-blocking and High Oxygen Permeable Ophthalmic Lens Containing benzophenone and benzotriazole Group with Oxide Nanoparticles |
| Authors |
Min-Jae Lee, A-Young Sung*
Department of Optometry, Daegu Catholic University, Korea
|
| Abstract |
To minimize the ophthalmic side effects caused by corneal hypoxia and UV light, the functional silicon hydrogel ophthalmic lens containing UV absorbents and oxide nanoparticles were manufactured. 2H4O (2-Hydroxy-4-n-octyloxybenzophenone) and 25CB (2-(3,5-Di-tert-butyl-2-hydroxyphenyl)-5-chloro-2H-benzotriazole) as UV-blocking material and oxide nanoparticles were used as additives with silicon monomers. The materials were copolymerized with EGDMA (ethylene glycol dimethacrylate) as the cross-linking agent and AIBN as the initiator. Measurement of the physical characteristics of the produced material showed that the refractive index is 1.3822~1.3957, water content 60.33~62.95%, UV-B transmittance 0.12~57.29%, UV-A transmittance 0.02~83.15% and DK 20.84~33.05 × 10-11(cm2/sec)(ml O2/ml x mmHg). The polymer including silicon monomer showed high performance of oxygen permeability and water content. Also, the results showed increase of UV-blocking effect as the ratio of additives and copolymerization of both absorbent and nanoparticle made synergy effect of UV-blocking. Based on the results of this study, the transmittance for UV was reduced significantly with increase of 2H4O, 25CB and oxide nanoparticles. These materials are expected to be used as useful material for UV-block ophthalmic lens with high water content and oxygen permeability. |
| E-mail |
tomssamac@naver.com |
|
122nd General Meeting of the KCS