申请人:Sumitomo Chemical Company Limited
公开号:US20140151660A1
公开(公告)日:2014-06-05
A polymer comprising repeat units of formula (I) and one or more co-repeat units:
Ar
1
in each occurrence independently represent an aryl or heteroaryl group;
R
1
and R
2
in each occurrence independently represent a substituent;
p independently in each occurrence is 0 or a positive integer;
Sp represents a spacer group comprising at least one carbon or silicon atom spacing the two groups Ar
1
apart; and
each group Ar
1
is bound to an aromatic group of a co-repeat unit.
The polymer may form a charge-transporting layer of an OLED or may be a host material used with a luminescent dopant in a light-emitting layer of an OLED.