Fluorine-containing epoxy(meth)acrylate resin

摘要

The fluorine-containing epoxy(meth)acrylate resin of the invention is represented by the following general formula (I). <IMAGE> (I) <IMAGE> +TR <IMAGE> wherein Rf is selected from the group consisting of - phi -C(CF3)2- phi - (where phi stands for <IMAGE> -C(CF3)2- phi '-C(CF3)2- (where phi ' stands for <IMAGE> and -CH2(CF2)6CH2-; n is zero or a positive integer; and X is hydrogen or methyl group. The resin of the invention may be prepared by reacting a diglycidyl ether of a fluorine-containing hydrocarbon (Rf) with acrylic acid or methacrylic acid. Further provided is an adhesive composition comprising the aforementioned fluorine-containing epoxy(meth)acrylate resin and a photo polymerization initiator, which can be cured at room temperature within a short time by irradiation with an UV ray to form a cured product having a refractive index nD20 ranging from 1.434 to 1.532. The adhesive composition of the invention has a particular utility when used to form a part or zone contacting with a quartz glass or glass fibers, since it is improved in matching of the refractive index with those of the quartz glass and optical fibers.