Patent ID: 7381850

Claim:
A monomer corresponding to the formula: wherein L is —O—, —S—, —N═N—, —(CO)—, —(SO 2 )—, or —O(CO)—; Z is independently in each occurrence hydrogen, halogen, an unsubstituted or inertly substituted aromatic group, an unsubstituted or inertly substituted alkyl group, or two adjacent Z groups together with the carbons to which they are attached form a fused aromatic ring, and in one occurrence, Z is wherein, R 1 is independently each occurrence selected from the group consisting of hydrogen, halo, C 1-4 alkyl, C 6-60 aryl, and C 7-60 inertly substituted aryl groups; and R 2 is independently each occurrence selected from the group consisting of hydrogen, C 1-4 alkyl, C 6-60 aryl, and C 7-60 inertly substituted aryl groups.