| 主权项 |
1. A method for the manufacture of a bis(phthalimide) composition, the method comprising contacting a substituted phthalic anhydride with an organic diamine in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents at a temperature of greater than 130° C.;
wherein the substituted phthalic anhydride has a formula and the organic diamine has a formula
H2N—R—NH2;to provide the bis(phthalimide) composition comprising diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents, and a bis(phthalimide) of the formulawherein, in the foregoing formulae,
X is fluoro, chloro, bromo, iodo, nitro, or a combination comprising at least one of the foregoing, and R is an aromatic hydrocarbon group having 6 to 27 carbon atoms, a halogenated derivative thereof, a straight or branched chain alkylene group having 2 to 10 carbon atoms, a halogenated derivative thereof, a cycloalkylene group having 3 to 20 carbon atoms, a halogenated derivative thereof, —(C6H10)z— wherein z is an integer from 1 to 4, an aromatic hydrocarbyl moiety having from 1 to 6 aromatic groups, a divalent group of the formula wherein Q1 is a single bond, —O—, —S—,—C(O)—, —SO2—, —SO—, —CyH2y wherein y is an integer from 1 to 5, or a combination comprising at least one of the foregoing, wherein the stoichiometric molar ratio of the substituted phthalic anhydride to the organic diamine is 1.95:1 to 2.05:1. |
