| abstract |
The present invention provides a fluorene-containing polyfunctional (meth) acrylate capable of having both excellent scratch resistance and high refractive index, which is obtained by the following formula (1), and the average value of m1+m2 is adjusted to 8.5 to 17: □ (wherein R1a and R1b represent a non-radical polymerizable substituent, R2a and R2b represent an alkylene group, R3a and R3b represent a hydrogen atom or a methyl group, and R4a and R4b represent a non-free radical. The base polymerizable substituent, k1 and k2 each represent an integer of 0 to 4, m1 and m2 each represent an integer of 0 or more, n1 and n2 represent an integer of 1 to 4, respectively, and p1 and p2 represent 0 to 4, respectively. An integer of which n1+p1≦5, n2+p2≦5). |