Oxadiazole polymethacrylates

The polymers have been used in different multi-layered devices using PPV as emissive layer. Typical devices were prepared on glass substrates precoated with patterned indium-tin oxide (ITO) electrodes (resistance < 20 Q/square). In a two layer LED, the oxadiazole polymethacrylates (10a or 10b) were spin-coated on top of poly(p-phenylene vinylene) (PPV), prepared on an ITO glass substrate by the sulfonium precursor route (22). Cdcium was used as the top metal contact. A comparable device, but without the polymethacrylate, was fabricated as a reference. Both devices emitted green yellow light under forward bias potential (15 V). 

M. Greczmiel, P. Strohriegl, M. Meier, and W. Briitting, Polymethacrylates with pendant oxadiazole units synthesis and application in organic LEDs, Macromolecules, 30 6042-6046,1997. 

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