Synthesis of Novel Polythiol for Plastic Optical Lens and its Ophthalmic Lens

Bulletin of the Korean chemical society

Soo Gyun Roh¹  Jin Moo Seo¹  Myeong Ja Kwon¹  Soo Min Lee¹  Wen Yi Jin¹  Jong Hyo Kim¹  Dong Gyu Jang¹ 

关键词: Plastic optical lens;    Polythiol;    Polythiourethane;    Refractive index;    Abbe¡¯s number;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

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 13C 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.

【 授权许可】

Unknown