Optical waveguide
View Patent ↗The present invention relates to an optical waveguide containing: a core formed by curing (A) a fluorine-containing polyarylene prepolymer having a crosslinkable functional group; and a cladding formed by curing (I) a curable composition containing (B) a compound having a molecular weight of 140 to 5,000, having a crosslinkable functional group and having no fluorine atom, and (A) a fluorine-containing polyarylene prepolymer.
1. An optical waveguide comprising:
a core formed by curing (A) a fluorine-containing polyarylene prepolymer having a crosslinkable functional group; and
a cladding formed by curing (I) a curable composition containing (B) a compound having a molecular weight of 140 to 5,000, having a crosslinkable functional group and having no fluorine atom, and (A) a fluorine-containing polyarylene prepolymer.
2. The optical waveguide according to claim 1 , wherein in said curable composition (I), the ratio of said fluorine-containing polyarylene prepolymer (A) to the total mass of said fluorine-containing polyarylene prepolymer (A) and said compound (B) is from 1 to 97 mass %.
3. The optical waveguide according to claim 1 , wherein said compound (B) has two or more of crosslinkable functional groups.
4. The optical waveguide according to claim 1 , wherein the crosslinkable functional group in said compound (B) contains one or more members selected from the group consisting of a vinyl group, an allyl group, an ethynyl group, a vinyloxy group, an allyloxy group, an acryloyl group, an acryloyloxy group, a methacryloyl group and a methacryloyloxy group.
5. The optical waveguide according to claim 1 , which is in a film form.
6. The optical waveguide according to claim 2 , wherein said compound (B) has two or more of crosslinkable functional groups.
7. The optical waveguide according to claim 2 , wherein the crosslinkable functional group in said compound (B) contains one or more members selected from the group consisting of a vinyl group, an allyl group, an ethynyl group, a vinyloxy group, an allyloxy group, an acryloyl group, an acryloyloxy group, a methacryloyl group and a methacryloyloxy group.
8. The optical waveguide according to claim 3 , wherein the crosslinkable functional group in said compound (B) contains one or more members selected from the group consisting of a vinyl group, an allyl group, an ethynyl group, a vinyloxy group, an allyloxy group, an acryloyl group, an acryloyloxy group, a methacryloyl group and a methacryloyloxy group.