Patent ID: 8722825

Claim:
A polymer, comprising the polymerized product of monomers comprising: a nitrogen-containing monomer having the formula (Ic), and an acid-deprotectable monomer having the formula (II): wherein: each R a is independently H, F, C 1-10 alkyl, or C 1-10 fluoroalkyl; LN is wherein each R e is independently halogen or OR′, where R′ is H or C 1-10 alkyl, and b is an integer of 1 to 9; each R c is independently C 1-10 alkyl, C 3-20 cycloalkyl, or C 3-20 heterocycloalkyl, wherein each R c is separate or at least one R c is attached to an adjacent R c ; and each R d is independently C 1-10 alkyl, C 3-20 cycloalkyl, or C 3-20 heterocycloalkyl, and each R d is separate or at least one R d is attached to an adjacent R d .