Jang, Dong-Gyu
(Department of Chemistry, College of Life Science and Nanotechnology, Hannam University)
,
Roh, Soo-Gyun
(Optical Material Institute, Shin Dae Specialties Co., Ltd)
,
Kim, Jong-Hyo
(Optical Material Institute, Shin Dae Specialties Co., Ltd)
,
Jin, Wen-Yi
(Optical Material Institute, Shin Dae Specialties Co., Ltd)
,
Seo, Jin-Moo
(Optical Material Institute, Shin Dae Specialties Co., Ltd)
,
Kwon, Myeong-Ja
(Department of Chemistry, College of Life Science and Nanotechnology, Hannam University)
,
Lee, Soo-Min
(Department of Chemistry, College of Life Science and Nanotechnology, Hannam University)
Novel polythiol materials of urethane lens series for plastic optical lens were synthesized from polyol materials via thioisouronium of thiourea with c-HCl in refluxing aqueous solution, in which polythiol material was carried out from hydrolysis of thioisouronium by ammonia water. Their structure p...
Novel polythiol materials of urethane lens series for plastic optical lens were synthesized from polyol materials via thioisouronium of thiourea with c-HCl in refluxing aqueous solution, in which polythiol material was carried out from hydrolysis of thioisouronium by ammonia water. Their structure properties were identified by EA, EI-MS, FT-IR, $^1H\;and\;^{13}C$ NMR spectroscopies and TGA. Their ophthalmic lenses as polythiourethane material were prepared by thermal curing to an injected glass mold using the evenly solutions of diisocyanates series (TDI, XDI, HDI or IPDI) with polythiols. Polythiourethane shows that the strong stretching mode for SH group of polythiol disappeared in FT-IR spectra after thermosetting polymerization. Thermal deformation starting temperature of ophthalmic lenses was determined by TMA. Ophthalmic lenses made from characteristic polythiol and diisocyanate series have transparency, colorless and good impact strength, in which thermal resistance and impact strength of ophthalmic lenses were influenced by diisocyanate series. Physical properties of ophthalmic lens have contrast thermal resistance with impact strength. The property of thermal resistance and impact strength for respective ophthalmic lenses was examined by TMA and drop ball test.
Novel polythiol materials of urethane lens series for plastic optical lens were synthesized from polyol materials via thioisouronium of thiourea with c-HCl in refluxing aqueous solution, in which polythiol material was carried out from hydrolysis of thioisouronium by ammonia water. Their structure properties were identified by EA, EI-MS, FT-IR, $^1H\;and\;^{13}C$ NMR spectroscopies and TGA. Their ophthalmic lenses as polythiourethane material were prepared by thermal curing to an injected glass mold using the evenly solutions of diisocyanates series (TDI, XDI, HDI or IPDI) with polythiols. Polythiourethane shows that the strong stretching mode for SH group of polythiol disappeared in FT-IR spectra after thermosetting polymerization. Thermal deformation starting temperature of ophthalmic lenses was determined by TMA. Ophthalmic lenses made from characteristic polythiol and diisocyanate series have transparency, colorless and good impact strength, in which thermal resistance and impact strength of ophthalmic lenses were influenced by diisocyanate series. Physical properties of ophthalmic lens have contrast thermal resistance with impact strength. The property of thermal resistance and impact strength for respective ophthalmic lenses was examined by TMA and drop ball test.
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제안 방법
2-mercaptoethylthio)-2-[2-(2-mercaptoethylthio)ethylthio] propylthio}ethanethiol) (1) and GSTT (2-{2,3-bis-(2-(2-mercapto-ethylthio)ethylthio)propylthio}ethanethiol) (2) and its opthalmic lenses, in which 1 and 2 are materials of urethane lens series having high refractive index and super high refractive index. 1 and 2 as optical lens materials of urethane lens series in ophthalmic lens were synthesized and identified their structures and properties by elemental analysis, EI-MS, TGA, FT-IR spectroscopy, 1H and 13C NMR spectroscopies. Their plastic optical lenses were prepared and its properties were investigated by TMA and drop ball test.
1 and 2 as optical lens materials of urethane lens series in ophthalmic lens were synthesized and identified their structures and properties by elemental analysis, EI-MS, TGA, FT-IR spectroscopy, 1H and 13C NMR spectroscopies. Their plastic optical lenses were prepared and its properties were investigated by TMA and drop ball test. These studies are necessary in order to obtain excellent ophthalmic lenses and also the substitution effectfor an import ofthe whole quantity from advanced nations to domestic companies which are related to urethane optical lens materials for plastic optical lens.
성능/효과
78 ppm, even though their assignments were not exactly determined due to a complicated peaks for similar conditions of polythiols. Analysis of 13C NMR data for 1 and 2 indicated that the characteristic peak of -CH- showed one peak at 46.19 ppm for 1 and 46.11 ppm for 2, respectively, while that of terminal -SCH2CH2SH groups showed an equal peak at 24.71 ppm for 1 and 2.
Analysis of 1H NMRdata for 1 and 2 indicated approximately three groups such as -CH- or -SCH2CH2SH at 2.85 - 3.00 ppm, -CHCH2SCH2CH2SH, -SCH2CH2SH, -SCH2CH2S- at 2.70 -2.84 ppm and -CH2CH2SH at 1.78 ppm, even though their assignments were not exactly determined due to a complicated peaks for similar conditions of polythiols. Analysis of 13C NMR data for 1 and 2 indicated that the characteristic peak of -CH- showed one peak at 46.
참고문헌 (16)
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