| abstract |
A compound having a 9,9-bisarylfluorene skeleton represented by the following formula (2) having a polar substituent is added to a cyclic olefin resin having a functional group to obtain a resin composition having a moderate Abbe number. Wherein the ring Z is an arene ring, R 3 and R 4 are substituents and the group X is a group - [(OR 5 ) n 1 -Y 1 ] (wherein the substituent Y 1 is a hydroxyl group, a mercapto group, (Meth) acryloyloxy group, R 5 is an alkylene group, n 1 is 0 or an integer of 1 or more, or a group - [(CH 2 ) n 2 -Y 2 ] wherein the substituent Y 2 is a carboxyl group, An alkoxycarbonyl group, an amino group or a substituted amino group, n2 represents 0 or an integer of 1 or more), k represents an integer of 0 to 4, m represents 0 or an integer of 1 or more, and p represents an integer of 1 or more. This resin composition has an Abbe number in the middle region (Abbe number of about 28 to 55) and is useful as an optical lens or the like. |