Substituted Poly p-Phenylene Vinylene Homopolymers

SCHEME 2.9 Synthesis of phenyl-PPV by dehydrogenation route. (From Francois, B., Izzillo, S., and Iratyabal, P., Synth. Met., 102, 1211, 1999.) 

As will be shown throughout the chapter, the parent PPV 1 is extensively used as a holetransporting layer (HTL) in combination with other EL polymers. Recently, improved photostability of organic inorganic hybrid EL material, prepared by incorporating PPV 1 into zeolite capsules, was described [54]. However, the material showed only weak EL (at driving voltage of 2.5 V). 

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