| 摘要 |
PURPOSE:To obtain the optical transmission body which substantially prevents the phase sepn. of a polymer and has excellent transparency by mixing two kinds of specific monomers, molding the mixture to a fiber shape by preliminary polymn. and polymerizing the monomers while selectively volatilizing the unpolymerized monomers from the surface of this molding. CONSTITUTION:The monomer mixture prepd. by mixing >= 2 kinds of the monomers varying in refractive index, a polymn. initiator and various polymn. compds. is polymerized to form the prepolymer in which the monomers remain. The monomers which are the same in polymerizable functional groups and have >= 20 deg.C difference in the b.p. at 760 mm Hg are used. The monomers are molded to the fiber shape. While the unpolymerized monomers are selectively volatilized from the molding surface, the entire unpolymerized is polymerized. The optical transmission body having the excellent transparency is produced in this way. |
