Matsuda, Takahiro Yoshida, Masanori Funae, Yasuaki Optical Material Having High Refractive Index, Low Specific Gravity, and Excelient Impact Resistance Prepared by Unsaturated Nitrile-Polyfunctional Methacrylate-Styrenic Monomer Copolymerization - 2247-2255 p. Subjects--Topical Terms: Optical MaterialsLens FiberMethacylic Acid