Teaching an Old Poly(arylene ether) New Tricks: Efficient Blue Thermally Activated Delayed Fluorescence.Polymer light-emitting diodes are attractive for optoelectronic applications owing to their brightness and ease of processing.  Here we present a strategy to make blue thermally activated delayed fluorescence (TADF) polymers by directly embedding a small molecular blue TADF emitter into a poly(aryl ether) (PAE) backbone.  These polymers are free from metal catalyst contamination and show improved thermal stability. 
THERM