| 摘要 |
<p>The invention relates to an optical material suitable for lenses of eyeglasses and so on, which exhibits a high refractive index, a high Abbe number, and excellent heat resistance and is excellent in workability to generate little uncomfortable odor in machining such as grinding or polishing. The optical material is characterized by consisting of a polymer comprising units derived from a polymerizable sulfur-containing adamantane compound bearing in the molecule (a) at least one adamantyl group, (b) at least one polymerizable functional group, and (c) at least one sulfur atom.</p> |
