| abstract |
The invention provides conjugated polymers that have good solubility and semiconductivity, and that display high photoluminescent and electroluminescent efficiency. Representative polymers have the structure of formula (I): n n n wherein: Ar 1 and Ar 2 are independently selected from the group consisting of monocyclic, bicyclic and polycyclic arylene, heteroarylene, substituted arylene and substituted heteroarylene groups; L is alkylene, alkenylene, substituted alkylene, substituted alkenylene, heteroalkylene, heteroalkenylene, substituted heteroalkylene, substituted heteroalkenylene, arylene, heteroarylene, substituted arylene or substituted heteroarylene; m is zero or 1; n is zero or 1; Q 1 and Q 2 are independently selected from the group consisting of H, aryl, heteroaryl, substituted aryl, substituted heteroaryl, alkyl, and substituted alkyl, and Q 3 is selected from the group consisting of alkyl and substituted alkyl, with the proviso that when m is 1, Q 1 and Q 2 are other than H; and A − is an anionic counterion such as a halide ion. Electroluminescent and other devices containing a polymer of the invention are also provided. |