POLYMER LIGHT-EMITTING MATERIAL AND POLYMER LIGHT-EMITTING DEVICE

摘要

Disclosed is a polymer light-emitting material which contains a polymer compound composed of repeating units represented by the formula (1) or (2) below and having a number-average molecular weight of 10<3>-10<8> based on polystyrene standards, and exhibits light emission from the triplet excited state. (1) [In the formula, Ar<1> and Ar<2> independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group; X<1> and X<2> independently represent O, S, C(=O), S(=O), SO2, C(R<1>)(R<2>), Si(R<3>)(R<4>), N(R<5>), B(R<6>), P(R<7>) or P(=O)(R<8>); X<1 >and Ar<2> are bonded with adjacent carbon atoms in the aromatic ring of Ar<1>; and X<2> and Ar<1> are bonded with adjacent carbon atoms in the aromatic ring of Ar<2>.] (2) [In the formula, Ar<3> and Ar<4> independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group; X<3> and X<4> independently represent N, B, P, C(R<9>) or Si(R<10>); X<3 >and Ar<4> are bonded with adjacent atoms in the aromatic ring of Ar<3>; and X<4> and Ar<3> are bonded with adjacent atoms in the aromatic ring of Ar<4>.]