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http://dx.doi.org/10.5012/jkcs.2016.60.3.181

Characterization and Application for Hydrogel Lens Material of Acrylate Monomers Containing Hydroxyl Group  

Lee, Min-Jae (Department of Optometry & Vision Science, Catholic University of Daegu)
Kim, Tae-Hun (Department of Visual Optics, Baekseok University)
Sung, A-Young (Department of Optometry & Vision Science, Catholic University of Daegu)
Publication Information
Journal of the Korean Chemical Society / v.60, no.3, 2016 , pp. 181-186 More about this Journal
Abstract
The hydrophilic ophthalmic lens with addition of 2-hydroxyethyl acrylate (HEA), 2-hydroxyethyl methacrylate (HEMA), hydroxypropyl methacrylate (HPMA) and Ag nanoparticles were manufactured. And also, the cross-linker ethylene glycol dimethacrylate (EGDMA) and the initiator azobisisobutyronitrile (AIBN) were used for polymerization. The polymerization of the hydrogel lens material was conducted through thermal polymerization in 100 ℃ for 1h. The optical and physical characteristics of hydrogel lens were evaluated by measuring water content, refractive index and optical transmittance. The water content of sample containing HEA, HEMA and HPMA was in the average of 82.12%, 37.06% and 21.57%, respectively. And also, refractive index of the sample containing HEA, HEMA and HPMA was in the average of 1.3540, 1.4330 and 1.4649, respectively. In case of the optical properties of the sample, the results showed that the near-UV transmittance was 82.67%, 80.32% and 79.83%, and the visible transmittance was 89.72%, 88.24% and 86.89%, respectively. And also, optical transmittance of the sample containing Ag nanoparticles showed that the near-UV transmittance of 10.59% and visible transmittance of 43.74% were obtained. From the results, the molecular length influenced on the water content and refractive index of the polymerized material.
Keywords
HEA(2-hydroxyethyl acrylate); HEMA(2-hydroxyethyl methacrylate); HPMA(hydroxypropyl methacrylate); Ag nanoparticles; Water content; Refractive index;
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Times Cited By KSCI : 5  (Citation Analysis)
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