Polymer and polymeric luminescent element employing the same

A polymer compound having at least one type of repeat unit selected from the group consisting of the repeat units represented by the following formula (1), characterized by having a substituent selected from the group consisting of the monovalent groups represented by the following formula (2) or (3),

• —Ar1—(Z′)p— (1)
• where Ar1 represents an arylene group, a divalent heterocyclic group or a divalent aromatic amine group;
• Z′ represents —CR4═CR5— or —C≡C—;
• R4 and R5 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group or a cyano group;
• and p represents 0 or 1,
• where A1 represents —O—, —S— or —C(O)—;
• Ar01 represents a direct bond, an arylene group, a divalent heterocyclic group or a divalent aromatic amine group;
• R05 and R07 each independently represent a direct bond, —R1—, —O—R1—, —R1—O—, —R1—C(O)O—, —R1—OC(O)—, —R1—N(R20)—, —O—, —S—, —C(O)O— or —C(O)—;
• R1 represents an alkylene group or an alkenylene group, with the proviso that when Ar01 is a direct bond, R07 is also a direct bond;
• R20 represents a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group or a cyano group;
• R01 and R02 each independently represent a substituent;
• a and b are each independently an integer from 0 to 4;
• and a plurality of substituents represented by R01 and R02 may be the same or different,
• where B1 represents —O—, —S— or —C(O)—;
• Ar02 represents a hydrogen atom, an aryl group, a monovalent heterocyclic group or a monovalent aromatic amine group;
• Ar03 represents a direct bond, an arylene group, a divalent heterocyclic group or a divalent aromatic amine group;
• R06, R08 and R09 each independently represent a direct bond, —R1—, —O—R1—, —R1—O—, —R1—C(O)O—, —R1—OC(O)—, —R1—N(R20)—, —O—, —S—, —C(O)O— or —C(O)—;
• R1 represents an alkylene group or an alkenylene group, R20 represents a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group or a cyano group, with the proviso that when Ar03 is a direct bond, R09 is also a direct bond;
• R03 and R04 each independently represent a substituent;
• c is an integer from 0 to 4;
• d is an integer from 0 to 3;
• and a plurality of substituents represented by R03 and R04 may be the same or different.