A polymer composition comprising a polyetherimide having the formula wherein n is greater than 1, each R is the same or different, and is selected from an aromatic hydrocarbon group having 6 to 30 carbon atoms, a halogenated derivative thereof, a straight or branched chain alkylene group having 2 to 10 carbon atoms, a cycloalkylene group having 3 to 10 carbon atoms, or a divalent group of the formula wherein Q 1 is selected from -O-, -S-, -C -, -SO 2 -, -SO-, and -C y H 2y - wherein y is 1 to 5 and a halogenated derivative thereof, each Z is the same or different, and is an aromatic C 6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C 1-18 alkyl groups, 1 to 8 halogen atoms, or a combination thereof, and the divalent bonds between the -O-Z-O- group and the phenyl substituents are in the 3,3', 3,4', 4,3', and 4,4' positions, the divalent bonds of the -O-Z-O- group being made from a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, at least 15 wt.% of a 3,3'-bis(halophthalimide) of the formula from more than 17 wt.% to less than 85 wt.% of a 4,3'-bis(halophthalimide) of the formula and from more than 0 to less than 27 wt.% of a 4,4'-bis(halophthalimide) of the formula wherein each X is independently fluoro, chloro, bromo, or iodo and R is as defined above, the polyetherimide being a catalyzed polymerization reaction product of the bis(halophthalimide) composition and a 1.6 to 2.0 mole % excess of an alkali metal salt of a dihydroxy aromatic compound of the formula MO-Z-OM wherein M is an alkali metal, and Z is as defined above, in the presence of from 2 to 4 mole % of an endcapping agent, and wherein the polyetherimide has: a Tg above 220°C; 20 wt. % to 35 wt. % solids; an Mw of at least 42,000 Daltons; a maximum chloride content of less than 900 ppm by weight; a maximum of 700 ppm by weight OH endgroup polymer functionality; and the low shear viscosity of the polyetherimide is at least 30% lower than a polyetherimide made from a bis(halophthalimide) composition comprising less than 10 wt.% of the 4,3'-bis(halophthalimide). n is greater than 1, each R is the same or different, and is selected from an aromatic hydrocarbon group having 6 to 30 carbon atoms, a halogenated derivative thereof, a straight or branched chain alkylene group having 2 to 10 carbon atoms, a cycloalkylene group having 3 to 10 carbon atoms, or a divalent group of the formula wherein Q 1 is selected from -O-, -S-, -C -, -SO 2 -, -SO-, and -C y H 2y - wherein y is 1 to 5 and a halogenated derivative thereof, each Z is the same or different, and is an aromatic C 6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C 1-18 alkyl groups, 1 to 8 halogen atoms, or a combination thereof, and the divalent bonds between the -O-Z-O- group and the phenyl substituents are in the 3,3', 3,4', 4,3', and 4,4' positions, the divalent bonds of the -O-Z-O- group being made from a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, at least 15 wt.% of a 3,3'-bis(halophthalimide) of the formula from more than 17 wt.% to less than 85 wt.% of a 4,3'-bis(halophthalimide) of the formula and from more than 0 to less than 27 wt.% of a 4,4'-bis(halophthalimide) of the formula wherein each X is independently fluoro, chloro, bromo, or iodo and R is as defined above, the polyetherimide being a catalyzed polymerization reaction product of the bis(halophthalimide) composition and a 1.6 to 2.0 mole % excess of an alkali metal salt of a dihydroxy aromatic compound of the formula MO-Z-OM at least 15 wt.% of a 3,3'-bis(halophthalimide) of the formula from more than 17 wt.% to less than 85 wt.% of a 4,3'-bis(halophthalimide) of the formula and from more than 0 to less than 27 wt.% of a 4,4'-bis(halophthalimide) of the formula wherein each X is independently fluoro, chloro, bromo, or iodo and R is as defined above, the polyetherimide being a catalyzed polymerization reaction product of the bis(halophthalimide) composition and a 1.6 to 2.0 mole % excess of an alkali metal salt of a dihydroxy aromatic compound of the formula MO-Z-OM wherein M is an alkali metal, and Z is as defined above, in the presence of from 2 to 4 mole % of an endcapping agent, and wherein the polyetherimide has: a Tg above 220°C; 20 wt. % to 35 wt. % solids; an Mw of at least 42,000 Daltons; a maximum chloride content of less than 900 ppm by weight; a maximum of 700 ppm by weight OH endgroup polymer functionality; and a Tg above 220°C; 20 wt. % to 35 wt. % solids; an Mw of at least 42,000 Daltons; a maximum chloride content of less than 900 ppm by weight; a maximum of 700 ppm by weight OH endgroup polymer functionality; and the low shear viscosity of the polyetherimide is at least 30% lower than a polyetherimide made from a bis(halophthalimide) composition comprising less than 10 wt.% of the 4,3'-bis(halophthalimide).