Oligomer, composition including oligomer, article prepared from the composition, method for preparing article, and display device including the article

An oligomer comprising:

• two ends and a main chain located between the two ends,
• a group represented by Chemical Formula 1 at one end, and a structural unit represented by Chemical Formula 2 or Chemical Formula 3 in the main chain:
• wherein, in Chemical Formula 1,
• R1 is a C4 to C10 tertiary alkoxy group, a R—CH═CH—O— group wherein R is hydrogen or substituted or unsubstituted C1 to C8 alkyl group, a R—CH═CH—CH2—O— group wherein R is hydrogen or substituted or unsubstituted C1 to C7 alkyl group, a substituted phenyloxy group, a substituted or unsubstituted benzyloxy group, or a 9-fluorenylmethyloxy group, and
• Ar2 comprises a substituted or unsubstituted C6 to C30 aromatic organic group, wherein the substituted or unsubstituted C6 to C30 aromatic organic group is present as a substituted or unsubstituted single aromatic ring;
• a fused ring comprising two or more substituted or unsubstituted aromatic rings;
• or a ring system comprising two or more of the substituted or unsubstituted single aromatic ring and/or the fused ring that are linked by a single bond, a fluorenylene group, a substituted or unsubstituted C1 to C10 cycloalkylene group, a substituted or unsubstituted C6 to C15 arylene group, —O—, —S—, —C(═O)—, —CH(OH)—, —S(═O)2—, —Si(CH3)2—, —(CH2)p— (wherein, 1≤p≤10), —(CF2)q— (wherein, 1≤q≤10), —C(CH3)2—, —C(CF3)2—, —C(═O)NH—, or a combination thereof;
• wherein, in Chemical Formula 2 and Chemical Formula 3,
• Ar2 is the same as defined in Chemical Formula 1,
• Ar1 comprises a combination of a group represented by Chemical Formula 4 and a group represented by Chemical Formula 5:
• wherein, in Chemical Formula 4,
• R10 is a single bond, —O—, —S—, —C(═O)—, —CH(OH)—, —C(═O)NH—, —S(═O)2—, —Si(CH3)2—, —(CH2)p— (wherein, 1≤p≤10), —(CF2)q— (wherein, 1≤q≤10), —C(CnH2n+1)2—, —C(CnF2n+1)2—, —(CH2)p—C(CnH2n+1)2—(CH2)q—, —(CH2)p—C(CnF2n+1)2—(CH2)q— (wherein 1≤n≤10, 1≤p≤10, and 1≤q≤10), or a combination thereof,
• R12 and R13 are independently a halogen, a hydroxy group, a substituted or unsubstituted C1 to C10 aliphatic organic group, a substituted or unsubstituted C6 to C20 aromatic organic group, a —OR201 group (wherein, R201 is a C1 to C10 aliphatic organic group), or a —SiR210R211R212 group (wherein R210, R211, and R212 are independently hydrogen or a C1 to C10 aliphatic organic group), and
• n7 and n8 are independently one of integers of 0 to 3;
• wherein, in Chemical Formula 5,
• R4 and R5 are independently a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 acyl group, a hydroxy group, a halogen, a nitro group, —NR′R″ (wherein, R′ and R″ are independently hydrogen, a C1 to C30 alkyl group, or a C6 to C30 aryl group), —SiR′R″R′″ (wherein R′, R″, and R′″ are independently hydrogen, a C1 to C30 alkyl group, or a C6 to C30 aryl group), or a combination thereof,
• L1 is O or NRb (wherein, Rb is hydrogen or a C1 to C20 alkyl group),
• A1 is a substituted or unsubstituted C6 to C30 aromatic organic group, and
• Ra is hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 arylalkyl group, a hydroxy group, a halogen, a nitro group, —NR′R″ (wherein, R′ and R″ are independently hydrogen, a C1 to C30 alkyl group, a C6 to C30 aryl group, or a C7 to C30 arylalkyl group), —C(═O)—NR′R″ (wherein, R′ and R″ are independently hydrogen, a C1 to C30 alkyl group, a C6 to C30 aryl group, or a C7 to C30 arylalkyl group), —SiR′R″R′″ (wherein R′, R″, and R′″ are independently hydrogen, a C1 to C30 alkyl group, a C6 to C30 aryl group, or a C7 to C30 arylalkyl group), or a group represented by Chemical Formula 6:
• *L2-A2qL3-A3)r] Chemical Formula 6
• wherein, in Chemical Formula 6,
• L2 and L3 are independently, O, C(═O), C(═O)O, C≡C, or C(═O)NRb (wherein, Rb is hydrogen or a C1 to C30 alkyl group),
• A2 and A3 are independently substituted or unsubstituted C6 to C30 aromatic ring, a substituted or unsubstituted fluorene ring, or a substituted or unsubstituted C7 to C20 arylalkyl or arylalkylene group,
• q and r are independently integers of 0 to 3;
• k is one of integers of 1 to 2,
• m is one of integers of 0 to 3,
• n is one of integers of 0 to 20, and
• o and p are independently one of integers of 0 to 3.