Nanoimprinting composition

A nanoimprinting composition, comprising approximately 2 to approximately 40 wt % a polyamic acid (B) obtained by reacting one or more diamines selected from the group of 4,4′-diaminodiphenylsulfone, 3,3′-diaminodiphenylsulfone, 4,4′-diaminodiphenyl ether, 4,4′-diaminodiphenylmethane, 3,3′-diaminodiphenylmethane, 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane, and compounds represented by Formula (b):

• wherein R3 and R4 are each independently a C1 to C3 alkyl or phenyl, each R5 is independently a methylene, phenylene, or alkyl-substituted phenylene, each x is independently an integer from approximately 1 to approximately 6, and y is an integer from approximately 1 to approximately 100;
• with one or more tetracarboxylic dianhydrides selected from the group of pyromellitic dianhydride, 1,2,3,4-butanetetracarboxylic dianhydride, 3,3′,4,4′-diphenyl ether tetracarboxylic dianhydride, and 3,3′,4,4′-diphenylsulfonetetracarboxylic dianhydride;
• and approximately 2 to approximately 40 wt % of one or more epoxy resins (C) selected from the group of compounds represented by Formulas (220) to (223):
• wherein n is an integer from approximately 0 to approximately 10.

A nanoimprinting composition comprising one or more compounds selected from the group of polyester-polyamic acids (A1) having structural units represented by Formulas (1) and (2):

• wherein R1, R2, and R3 are each independently a C2 to C100 organic group;
• and polyester-polyimides (A2) having structural units represented by Formulas (3) and (2):
• wherein R1, R2, and R3 are each independently a C2 to C100 organic group;
• and
• an epoxy resin (C).