Patent ID: 8211984

Claim:
A ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] (wherein one of R 1 to R 4 is selected from a carboxylic acid having one carbon atom and a fluorine-containing alkyl alcohol having 1 to 20 carbon atoms, and the remainders of R 1 to R 4 are hydrogen, while R 1 to R 4 may be bonded to each other to form a cyclic ester structure capable of forming a carboxylic acid anhydride, and X 1 is selected from —O—, —S—, —NR 5 —, —PR 5 —, and —CR 5 2 — (wherein R 5 represents hydrogen, or an alkyl group having 1 to 20 carbon atoms), and may be the same as or different from each other, m represents 0 or an integer of 1 to 3), and repeating structural units [B] represented by the following General Formula [2] (wherein R 6 to R 9 are each a group selected from the group consisting of hydrogen, and a cyano group, or R 6 to R 9 are bonded to each other to form a cyclic ester structure capable of forming a lactone ring, and X 2 is —CR 10 2 — (wherein R 10 represents hydrogen), and may be the same as or different from each other, n represents 0 or an integer of 1 to 3) at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 50/50.