| abstract |
The present invention provides a thermoplastic resin which can obtain a high thermostable molding which is reduced in deterioration in performance due to water and excellent in optical performance, and a molding made therefrom. The thermoplastic resin has a glass transition temperature of ≥ 130 DEG C, a saturated water absorption of ≤ 0.1 mass%, and satisfies a stress-optic constant of | CR | ≤ 3×10<SP>-10</SP>Pa<SP>-1</SP>, and is obtained by random addition polymerization of ethylene and tetracycio [4.4.0.12,5.17,10]-3-dodecyne. |