CROSSLINKABLE PERFLUORINATED DI(METHA)ACRYLATE COMPOUNDS AND THEIR PHOTOPOLYMER COMPOSITE AND PHOTOPOLYMER FILM USING THEM

摘要

Provided are a perfluorinated di(metha)acrylate compound, which is crosslinkable by an initiator or heat, and a photopolymerizable composition, which has low shrinkage and a large refraction index difference upon photocuring and forms thin film having an excellent recording effect. The crosslinkable perfluorinated di(metha)acrylate compound has a structure represented by the following chemical formula 1, wherein A is oxygen, B is an ester group or carbonyl group, D is a C2-C6 alkylene or alkyleneoxy group, X is a C6-C18 alkylene group or arylene group unsubstituted or substituted with an alkyl group or haloalkyl group, Y is a hydrogen atom or a C1-C6 alkyl group, m is 0 or 1, and n is an integer of 1-5.