Patent ID: 8248755

Claim:
A polyimide resin comprising at least one residue selected from Formulas 1-4: wherein each X is independently a C 1 -C 10 hydrocarbon unsubstituted or substituted with an atom or group independently selected from the group consisting of CN, F, SO 2 , SO, S, SO 3 H, SO 3 − , PO, PO 2 H, PO 3 H, PO 2 − , PO 3 −2 , CO, CO 2 − , CO 2 H, CONH, CONH 2 , NHCOHN, OCONH, OCO 2 , N, NH, NH 2 , NO 2 , CSNH, CSNH 2 , NHCSNH, OTi(OR 3 ) 3 , OSi(OR 3 ) 3 wherein R 3 is a C 1-10 aliphatic or aromatic hydrocarbon residue and at least one X is a C 1 -C 10 hydrocarbon substituted with at least one member selected from CN, F, SO 2 , SO, S, SO 3 H, SO 3 − , PO, PO 2 H, PO 3 H, PO 2 − , PO 3 −2 , CO, CO 2 − , CO 2 H, CONH, CONH 2 , NHCOHN, OCONH, OCO 2 , N, NH, NH 2 , NO 2 , CSNH, CSNH 2 , NHCSNH, OTi(OR 3 ) 3 , OSi(OR 3 ) 3 wherein R 3 is a C 1-10 aliphatic or aromatic hydrocarbon residue, R 1 is selected from the group consisting of a carbon-carbon single bond, a heteroatom containing group, the residuum of a bisphenol or a C 1 -C 50 hydrocarbon unsubstituted or substituted with an atom or group selected from the group consisting of O, S, O═S═O, S═O, P═O, C═O, —CO 2 —, —CONH—, —CONH 2 , —NHCOHN—, —OCONH—, —OCO 2 —, N, —NH, —NH 2 , —NO 2 , —Cl, —F, —CSNH—, —CSNH 2 , —NHCSNH—, and/or —CN and R 2 is selected from the residuum of a diamine and a C 1 -C 50 hydrocarbon unsubstituted or substituted with an atom or group selected from the group consisting of O, S, O═S═O, S═O, P═O, C═O, —CO 2 —, —CONH—, —CONH 2 —NHCOHN—, —OCONH—, —OCO 2 —, N, —NH, —NH 2 , —NO 2 , —Cl, —F, —CSNH—, —CSNH 2 , —NHCSNH—, and/or —CN.