| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluorine-containing copolymer having such suitable properties for a clad material of a light-transmitting fiber and the like, having an excellent adhesion to a base material and resin transparency and, further, low refractive index, its production method and an optical resin. SOLUTION: In providing each of the fluorine-containing copolymer, its production method and the optical resin, the fluorine-containing copolymer contains a structural units derived from a bisphenol AF diglycidyl ether and that derived from terephthalic acid(TPA) or the like. |
