| abstract |
The invention relates to polymers having at least one asymmetrical structural unit of the following formula (I): wherein A, B, Ar 1 , Ar 2 , Ar 3 and Ar 4 , n, m, o and p can have the meaning as defined in claim 1, to methods for the production thereof and to the use thereof in electronic or optoelectronic devices, in particular in organic electroluminescent devices, so-called OLEDs (OLED = Organic Light Emitting Diodes). The present invention also relates to organic electroluminescent devices which contain said polymers. |