Provided is a polymer compound which is useful for production of a light emitting device excellent in light emission efficiency is provided. The polymer compound contains a constitutional unit represented by the formula (1) and a constitutional unit represented by the formula (Y) as follows:
wherein R
1
to R
8
represent a hydrogen atom, an alkyl group, an aryl group or the like, and R
A
and R
B
represent an aryl group or a monovalent heterocyclic group, and
Ar
Y1
(Y)
wherein Ar
Y1
represents an arylene group or the like.
提供了一种聚合物化合物,可用于生产具有出色的光发射效率的发光装置。该聚合物化合物包含由式(1)表示的构成单元和由式(Y)表示的构成单元,其中R1至R8表示氢原子,烷基,芳基或类似物,RA和RB表示芳基或单价杂环基,而ArY1(Y)表示
芳烃基或类似物。