High-molecular compound and use its light-emitting component

Bridging property and the excellent high-molecular compound of hole transport ability are provided.A kind of high-molecular compound, it contains the Component units by formula (1A) or formula (1B) expression and the Component units represented by formula (2A) or formula (2B). [in formula, R Am And R Bm Represent hydrogen atom or substituent, Ar 1m ~Ar 5m And L M Represent divalent group, Ar M Represent aromatic hydrocarbyl or heterocyclic radical.Integer as defined in m1~m6 expressions.X M Represent the 1 valency group containing following crosslinked groups.] [in formula, R An And R Bn Represent hydrogen atom or substituent, Ar 1n ~Ar 5n 、Ar Ln And L N Represent divalent group, Ar N Represent aromatic hydrocarbyl or heterocyclic radical.Integer as defined in n1~n6 and Ln expressions.X N Represent the 1 valency group containing following crosslinked groups.] [in formula, n XL Represent 0~5 integer.R XL Represent divalent group.].