| 摘要 |
PURPOSE:To obtain the titled polymer for use in optical fiber of improved refractive index, heat resistance and transparency, by polymerization between specific fluoroalkyl methacrylate, (iso)bornyl methacrylate and another copolymerizable monomer in specific proportion. CONSTITUTION:The objective polymer can be obtained by polymerization, in the presence of a catalyst, e.g., t-butylperoxy-2-ethyl hexanoate, between (A) 30-85wt% of 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecanyl methacrylate unit, (B) 10-30wt% of isobornyl methacrylate or bornyl methacrylate and (C) 0-60wt% of another copolymerizable monomer unit (pref. tetrafluoropropyl methacrylate). |
