Patent ID: 11905381
Assignee: XEROX CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC C

Claim 2:
3. The method of claim 1, wherein the dianhydride is selected from the group consisting of pyromellitic dianhydride, 2,2-bis(4-(3,4-dicarboxyphenoxy)phenyl)propane dianhydride; 4,4′-bis(3,4-dicarboxyphenoxy)diphenyl ether dianhydride; 4,4′-bis(3,4-dicarboxyphenoxy) diphenyl sulfide dianhydride; 4,4′-bis(3,4-dicarboxyphenoxy)benzophenone dianhydride; 4,4′-bis(3,4-dicarboxyphenoxy)diphenyl sulfone dianhydride; 2,2bis(4-(2,3-dicarboxyphenoxy)phenyl)propane dianhydride; 4,4′-bis(2,3-dicarboxyphenoxy)diphenyl ether dianhydride; 4,4′-bis(2,3-dicarboxyphenoxy) diphenyl sulfide dianhydride; 4,4′-bis(2,3-dicarboxyphenoxy)benzophenone dianhydride; 4,4′-bis(2,3-dicarboxyphenoxy)diphenyl sulfone dianhydride; 4-(2,3-dicarboxyphenoxy)-4′-(3,4-dicarboxyphenoxy)diphenyl-2,2-propane dianhydride; 4-(2,3-dicarboxyphenoxy)-4′-(3,4-dicarboxyphenoxy)diphenyl ether dianhydride; 4-(2,3-dicarboxyphenoxy)-4′-(3,4-dicarboxyphenoxy) diphenyl sulfide dianhydride; 4-(2,3-dicarboxyphenoxy)-4′-(3,4-dicarboxyphenoxy)benzophenone dianhydride; 4-(2,3-dicarboxyphenoxy)-4′-(3,4-dicarboxyphenoxy)diphenyl sulfone dianhydride; 1,2,4,5-benzenetetracarboxylic dianhydride; 1S,2R,4S,5R-cyclohexanetetracarboxylic dianhydride; 1S,2S,4R,5R-cyclohexanetetracarboxylic dianhydride; 1R,2S,4S,5R-cyclohexanetetracarboxylic dianhydride; bicyclo[2.2.2]octane-2-endo,3-endo,5-exo,6-exo-tetracarboxylic 2,3:5,6-dianhydride; bicyclo[2.2.2]octane-2-exo,3-exo,5-exo,6-exo-2,3:5,6-dianhydride, cis-1,2,3,4-cyclohexanetetracarboxylic dianhydride; trans-1,2,3,4-cyclohexanetetracarboxylicdianhydride; bicyclo[2.2.1]heptane-2-endo,3-endo,5-exo,6-exo-tetracarboxylic 2:3,5:6-dianhydride; bicyclo[2.2.1]heptane-2-exo,3-exo,5-exo,6-exo-tetracarboxylic 2:3,5:6-dianhydride; (4arH,8acH)-decahydro-1t,4t:5c,8c-dimethanonaphthalene-2c,3c,6c,7c-tetracarboxylic2,3:6,7-dianhydride; (4arH,8acH)-decahydro-1t,4t:5c,8c-dimethano-naphthalene-2t,3t,6c,7c-tetracarboxylic2,3:6,7-dianhydride; rel[1S,5R,6R]-3-oxabicyclo[3.2.1]octane-2,4-dione-6-spiro-3′-(tetrahydrofuran-2′,5′-dione), bicyclo[2.2.1]heptane-2-exo,3-exo,5-exo-tricarboxyl-5-endo-acetic dianhydride; bicyclo[2.2.1]heptane-2-exo,3-exo,5-endo-tricarboxyl-5-exo-acetic dianhydride; 1,2,3,4-cyclobutanetetracarboxylic dianhydride; butane-1,2,3,4-tetracarboxylic dianhydride; bicyclo-[2.2.2]oct-7-ene-2-exo,3-exo,5-exo,6-exo-2,3:5,6-dianhydride; 1,8-dimethylbicyclo [2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic dianhydride; bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic dianhydride; bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic dianhydride; rel-(1R,1′S,3R,3′S,4S,4′R)-dicyclohexyl-3,3′,4,4′-tetracarboxylic dianhydride; rel-(1R,1′S,3R,3′S,4R,4′S)-dicyclohexyl-3,3′,4,4′-tetracarboxylic dianhydride; dicyclohexyl-1R,1′S,2S,2R′,3R,3S′-tetracarboxylic dianhydride; dicyclohexyl-2,3′,3,4′-tetracarboxylic dianhydride; 5,5′-oxybis(hexahydro-1,3-isobenzofurandione); 5,5′-(1-methylethylidene)bis[hexahydro-1,3-isobenzofurandione]; 5,5′-methylenebis(hexahydro-1,3-isobenzofurandione); 5,5′-carbonylbis(hexahydroisobenzofuran-1,3-dione); 1,2,3,4-cyclopentanetetracarboxylic dianhydride; 1,2-bis(4′-oxa-3′,5-dioxotricyclo-[4.3.0.12,5]decane-8′-yloxy)ethane; 1,3-dimethyl-1,2,3,4-cyclobutanetetracarboxylic dianhydride; 1,2,3,4-tetramethyl-1,2,3,4-cyclobutanetetracarboxylic dianhydride, norbornane-2-spiro-α-cyclohexanone-α′-spiro-2″-norbornane-5,5″,6,6″-tetracarboxylic dianhydride; cyclopentanone bis-spironorbornane tetracarboxylic dianhydride; 1,2,4-cyclopentanetricarboxylic acid-3-(carboxymethyl)-1,4:2,3-dianhydride; 3,3′-(1,4-piperazinediyl)bis[dihydro-2,5-furandione]; bicyclo[2.2.1]-heptane-2-methanecarboxylic-3,5,6-tricarboxylic-2,3:5,6-dianhydride, 2R,5R,7S,10S-naphthanetetracarboxylic dianhydride; pentacyclo [8.2.1.14′702′903′8]tetradecane-5,6,11,12-tetracarboxylic dianhydride; tricyclo[4.2.2.02,5]dec-7-ene-3,4,9,10-tetracarboxylic acid 3,4:9,10-dianhydride; dodecahydro-1H-4,11:5,9-dimethanofluoreno[2,3-c:6,7-c′]difuran-1,3,6,8(3aH)-tetraone; tetradecahydro-4,10:5,9-dimethanonaphtho[2″,3″:3,4;6″,7″:3′,4′]dicyclobuta[1,2-c:1′,2′-c′]difuran-1,3,6,8-tetrone, 1,2,3,4-butanetetracarboxylic dianhydride; 5,5′-thiobis[hexahydro-4,7-methanoisobenzofuran-1,3-dione]; 1,1,2,2-ethanetetracarboxylic dianhydride; 5,5′-sulfonylbis(hexahydro-4,7-ethanoisobenzofuran-1,3-dione); 5R,5′R-5,5′-exo-(1,1,3,3,5,5-hexamethyltrisiloxane-1,5-diyl)bisbicyclo[2.2.1] heptane-endo-2,3-dicarboxylic anhydride; 5S,5′S-5,5′-exo-(1,1,3,3,5,5-hexamethyltrisiloxane-1,5-diyl)bisbicyclo[2.2.1] heptane-endo-2,3-dicarboxylic anhydride; and any combination thereof.