Patent ID: 9556353
Date: 2017-01-31
CPC Classifications: C08F,C09D,G03F

Claim:
1. A polymer, comprising: i) a divalent first repeat unit of formula (A-1): wherein R R ii) a divalent second repeat unit of formula (A-2): wherein a′ represents numbers of repeat units enclosed by the parentheses and has an average value of 1 or more, E each J′ is an independent monovalent radical selected from the group consisting of hydrogen and monovalent radicals comprising 1 to 10 carbons, L′ is an independent divalent radical linking group comprising 1 to 10 carbons, each R R X′ is an independent divalent radical selected from the group consisting of *—O—*, *—S—*, *—N(H)—*, and *—N(R″)—*, wherein R″ is a monovalent radical comprising 1 to 6 carbons; and iii) a divalent third repeat unit of formula (A-3): wherein R L″ is an independent divalent linking group comprising 1 to 10 carbons, and K′ is a monovalent radical selected from the group consisting of active carboxylic ester groups, halide groups, sulfonate esters, and groups containing an epoxide group, wherein K′ is capable of reacting with a nucleophile to form a covalent bond; and wherein the first repeat unit, the second repeat unit, and the third repeat of the polymer are linked covalently in a random distribution.