Prepolymer, curable material, coating composition, non-linear optical material, optical waveguide and light control device

摘要

Provided are: a prepolymer which is capable of forming a non-linear optical material that has excellent non-linear optical effect, heat resistance, withstand voltage and transparency; a curable material which contains the prepolymer; a coating composition which contains the curable material and a solvent; a non-linear optical material which is obtained by curing the curable material; an optical waveguide which uses the non-linear optical material; and a light control device which is provided with the optical waveguide. The present invention uses a prepolymer having a crosslinkable functional group, which is obtained by reacting one or more compounds (X) that are selected from the group consisting of compounds (X1), compounds (X2) and compounds (X3), a compound (Y) that is represented by formula (Y), a compound (Z) that has three or more phenolic hydroxyl groups, and an organic compound (B) that exerts a non-linear optical effect and has a reactive group.;

主权项

1. A prepolymer, comprising
a condensate formed by a reaction including at least a dehydrohalogenation condensation reaction of a compound (X), a compound (Y), a compound (Z), and an organic compound (B), wherein: the prepolymer comprises crosslinkable functional groups, the compound (X) is at least one compound selected from the group consisting of a compound (X1) that comprises a crosslinkable functional group and a phenolic hydroxy group; a compound (X2) that comprises a crosslinkable functional group and a fluorine atom-substituted aromatic ring, but does not comprise a phenolic hydroxy group or an aromatic ring substituted by a haloalkyl group comprising at most 8 carbon atoms; and a compound (X3) that comprises a crosslinkable functional group and an aromatic ring substituted by a haloalkyl group comprising at most 8 carbon atoms but does not comprise a phenolic hydroxy group; at least one compound (X) is the compound (X1) or the compound (X2), the compound (Y) is a compound represented by the following formula (Y); the compound (Z) is a compound comprising at least 3 phenolic hydroxy groups but no crosslinkable functional group; and the organic compound (B) is an organic compound developing a nonlinear optical effect and comprising a reactive group;wherein n is an integer of from 0 to 3, each of a and b is independently an integer of from 0 to 3, each of Rf1 and Rf2 is independently a fluoroalkyl group comprising at most 8 carbon atoms, a nitrile group or a nitro group, and F in the aromatic ring represents that all the hydrogen atoms of the aromatic ring are substituted by a fluorine atom.