Disclosed are compounds according to formula (I),
##STR1##
wherein R and R are selected from the group consisting of
R=SiR1R2R3 and R=H; R=SiR1R2R3
and R=SiR4R5R6; and R=Ar1SiR1R2R3
and R=Ar2SiR4R5R6; R1,
R2, R3, R4, R5, and R6 are
independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl,
aryl, cycloalkyl, cycloalkenyl, cycloalkynyl, arylalkyl, arylalkenyl, and arylalkynyl;
Ar1 and Ar2 are independently selected from the group consisting
of arylene, arylenealkylene, arylenealkynylene, heteroarylene, heteroarylenealkylene,
heteroarylenealkenylene and heteroarylenealkylene; and n is at least 20. Such compounds
may be used as an emissive layer in a polymer light-emitting diode (PLED), which
itself may be used in electroluminescent devices.