UV CURING MONOMER HAVING HIGH REFRACTIVE INDEX, ITS PREPARATION METHOD, CURABLE COMPOSITION CONTAINING THE MONOMER, OPTICAL FILM AND LIGHT MANAGEMENT FILM (LMF) CONTAINING THE REACTION PRODUCT OF THE COMPOSITION, AND BACKLIGHT DISPLAY CONTAINING THE LMF

摘要

PURPOSE: Provided are a monomer having a high refractive index, a curable composition containing the monomer which has a sufficiently high glass transition temperature and shows a high refractive index even after cured, an optical film and a light management film containing the reaction product of the composition, a backlight display containing the light management film, and a method for preparing a monomer having a high refractive index. CONSTITUTION: The monomer comprises a compound represented by the formula 1, wherein Z is an ethylenically unsaturated group; X is O, S or NH; L1 and L2 are independently a C1-C3 alkylene group, -(C1-C3 alkylene)-S-(C1-C3 alkylene)- or -(C1-C3 alkylene)-O-(C1-C3 alkylene)-; R is H or a C1-C6 alkyl group; R1 and R2 are independently an aryl group, aryl(C1-C6 alkylene)-, a heteroaryl group or heteroaryl(C1-C6 alkylene)-, and these groups are substituted with 0-5 substituents independently selected from a halogen atom, a C1-C4 alkyl group, a C1-C4 alkoxy group, (C1-C4 alkyl)S-, a C1-C4 haloalkyl group and a C1-C4 haloalkoxy group; Y1 and Y2 are independently O, S, NH or N; if both Y1 and Y2 are S, X is S, at least one of R1 and R2 are a substituted heteroaryl group or heteroaryl(C1-C6 alkylene)-, or at least one of L1 and L2 are -(C1-C3 alkylene)-S-(C1-C3 alkylene)- or -(C1-C3 alkylene)-O-(C1-C3 alkylene)-; and if Y1 or Y2 is N, the each corresponding combination R1-Y1 or R1-Y2 is independently a N-containing heteroaryl group except carbazole.