Polymer and electronic device and organic thin film transistor including the same

A polymer comprising:

• a first repeating unit and a second repeating unit forming a main chain,
• the first repeating unit comprising at least one first conjugated system, and
• the second repeating unit comprising at least one second conjugated system and a multiple hydrogen bonding moiety represented by Chemical Formula 1:
• *-L1-X1—Ar1—X2-L2-* Chemical Formula 1
• wherein, in Chemical Formula 1,
• each of L1 and L2 are the same or different, and are independently one of a direct bond and a C1 to C5 substituted or unsubstituted alkylene group,
• each of X1 and X2 are the same or different, and are independently one of amide, urea, carbamate, —CO—, —OCO—, —NH—, and a combination thereof,
• Ar1 is a heteroaromatic group, and
• * is a portion that is linked to an adjacent second conjugated system, and
• wherein the first conjugated system includes at least one selected from a moiety represented by Chemical Formula 2-1, a moiety represented by Chemical Formula 2-2, a moiety represented by Chemical Formula 2-3, a moiety represented by Chemical Formula 2-4, a moiety represented by Chemical Formula 2-5, a moiety represented by Chemical Formula 2-6, a moiety represented by Chemical Formula 2-7, or a moiety represented Chemical Formula 2-8:
• wherein, in Chemical Formula 2-1,
• A is one of O, S, and NH,
• R1 is one of a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, and a halogen,
• a is 0 to 2, and
• * is a portion linked to an adjacent moiety;
• wherein, in Chemical Formula 2-2,
• A is one of O, S, and NH,
• R1 is one of a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, and a halogen,
• a is 0 to 2, and
• * is a portion linked to an adjacent moiety;
• wherein, in Chemical Formula 2-3,
• each of R2 and R3 is one of hydrogen, a substituted or unsubstituted aliphatic hydrocarbon group, and a substituted or unsubstituted aromatic hydrocarbon group, and
• * is a portion linked to an adjacent moiety;
• wherein, in Chemical Formula 2-4,
• each of R1 and R2 is one of hydrogen, a substituted or unsubstituted aliphatic hydrocarbon group, and a substituted or unsubstituted aromatic hydrocarbon group, and
• * is a portion linked to an adjacent moiety;
• wherein, in Chemical Formula 2-5,
• each R is independently one of hydrogen, a substituted or unsubstituted aliphatic hydrocarbon group, and a substituted or unsubstituted aromatic hydrocarbon group, and
• * is a portion linked to an adjacent moiety;
• wherein, in Chemical Formula 2-6,
• * is a portion linked to an adjacent moiety;
• wherein, in Chemical Formula 2-7,
• * is a portion linked to an adjacent moiety;
• and
• wherein, in Chemical Formula 2-8,
• * is a portion linked to an adjacent moiety.