| abstract |
(57) [Summary] [Purpose] To obtain a plastic optical fiber having excellent heat resistance, translucency, and mechanical properties. [Structure] In a plastic optical fiber having a core, a sheath, and a resin coating, the core has an N-isopropylmaleimide unit (A) of 5 to 50 mol%, a methyl methacrylate unit (B) of 35 mol% or more, and a styrene unit (C). ) 0 50 mol% and 0 to 10 mol% of other monomer units (D) copolymerizable therewith (however, (C) and (D) At least one of which is not 0 mol%), the sheath is a fluorine-containing polymer, and the resin coating is a polypropylene-based polymer. |