Fluoropolyether group-containing acrylic compound

Abstract

According to the present invention, a fluoropolyether group-containing acrylic compound represented by formula (1) has a low refractive index and is capable of forming a transparent composition by being compatibilized with a commonly used photopolymerization initiator. V1—Rf2—C(═O)—NR1a[Y2(X2)b′]2-a  (1) (In the formula, Rf2 represents a divalent perfluoropolyether group that is composed of a perfluoroalkylene group having 1 to 6 carbon atoms and an oxygen atom, while having a number average molecular weight of 500 to 40,000; Y2 represents a (b′+1)-valent organic group having 1 to 20 carbon atoms; X2 represents a monovalent organic group that contains an acryl group or an α-substituted acryl group, and at least one acryl group or α-substituted acryl group is contained in each molecule on average; R1 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 8 carbon atoms; V2 represents a hydrogen atom, a fluorine atom or a monovalent group represented by —C(═O)—NR1a[Y2(X2)b′]2-a; a represents 0 or 1; and b′ represents an integer of 1 to 10.)

Dependencies are inferred from the claim text.