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1. A photosensitive polymer, comprising:
a repeating unit represented by Formula 1, the photosensitive polymer having a weight average molecule weight of from about 3,000 to about 50,000: wherein, in Formula 1, Ar1 is selected from among:
a C3-C10 cycloalkylene group, a C3-C10 cycloalkenylene group, a C2-C10 heterocycloalkylene group, a C2-C10 heterocycloalkenylene group, a C6-C20 arylene group, and a C2-C20 heteroarylene group, anda C3-C10 cycloalkylene group, a C3-C10 cycloalkenylene group, a C2-C10 heterocycloalkylene group, a C2-C10 heterocycloalkenylene group, a C6-C20 arylene group, and a C2-C20 heteroarylene group that are substituted with at least one of a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a C3-C10 cycloalkyl group, a C3-C10 cycloalkenyl group, a C2-C10 heterocycloalkyl group, a C2-C10 heterocycloalkenyl group, a C6-C20 aryl group, and a C2-C20 heteroaryl group; Ar2 is selected from among:
—C(═O)—, —O—, a C1-C20 alkylene group, a C3-C10 cycloalkylene group, a C3-C10 cycloalkenylene group, a C2-C10 heterocycloalkylene group, a C2-C10 heterocycloalkenylene group, a C6-C20 arylene group, and a C2-C20 heteroarylene group, anda C3-C10 cycloalkylene group, a C3-C10 cycloalkenylene group, a C2-C10 heterocycloalkylene group, a C2-C10 heterocycloalkenylene group, a C6-C20 arylene group, and a C2-C20 heteroarylene group that are substituted with at least one of a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a C3-C10 cycloalkyl group, a C3-C10 cycloalkenyl group, a C2-C10 heterocycloalkyl group, a C2-C10 heterocycloalkenyl group, a C6-C20 aryl group, and a C2-C20 heteroaryl group; a and b are each independently an integer from 1 to 5, provided that:
when a is 2 or greater, the Ar1 in (Ar1)a are the same or different from each other, andwhen b is 2 or greater, the Ar2 in (Ar2)b are the same or different from each other; and R1 to R4 are each independently selected from among:
a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, C1-C20 alkyl group, C1-C20 alkoxy group,a C1-C20 alkyl group and a C1-C20 alkoxy group that are substituted with at least one of a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C6-C20 aryl group, and a C2-C20 heteroaryl group,a C3-C10 cycloalkyl group, a C3-C10 cycloalkenyl group, a C3-C10 heterocycloalkyl group, a C3-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, and a C2-C60 heteroaryl group, anda C3-C10 cycloalkyl group, a C3-C10 cycloalkenyl group, a C3-C10 heterocycloalkyl group, a C3-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, and a C2-C60 heteroaryl group that are substituted with at least one of a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, and a C1-C20 alkoxy group. |
