| 摘要 |
<p>A three-layered plastic optical fiber comprising a core, a cladding and a protective layer, characterized in that the material of the core is polymethyl methacrylate and that of the cladding is a copolymer comprising 20 to 45 wt.% of units of longchain fluoroalkyl methacrylate of the following structural formula (1): CH2=C(CH3)-COO-(CH2)2(CF2)7CF3, 54 to 79 wt.% of methyl methacrylate units and 0.05 to 2 wt.% of methacrylic acid units; and a four-layered plastic optical fiber cable prodduced by covering the above optical fiber with a jacket layer.</p> |
