Polymer and thin film transistor and electronic device

A polymer comprising:

• a first repeating unit represented by Chemical Formula 1;
• and
• a second repeating unit represented by Chemical Formula 2,
• wherein
• D1 is an electron donating moiety,
• A1 and A2 are different electron accepting moieties,
• L1 to L6 are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted divalent C3 to C30 heterocyclic group, a fused ring thereof, or a combination thereof,
• R1 and R2 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C3 to C30 cycloalkenyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C3 to C30 cycloheteroalkyl group, a substituted or unsubstituted C3 to C30 cycloheteroalkenyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 alkylaryl group, a substituted or unsubstituted C6 to C30 aryloxy group, a substituted or unsubstituted C3 to C30 heterocyclic group, a halogen, a cyano group, or a combination thereof, and
• * is a linking point.