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Poly(p-phenylene vinylene)
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{{DISPLAYTITLE:Poly(''p''-phenylene vinylene)}} {{chembox | Verifiedfields = changed | verifiedrevid = 476993896 | ImageFile = Polyphenylene vinylene.svg | Name = Polyphenylene vinylene | OtherNames = poly(1,4-phenylene-1,2-ethenediyl) |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|changed|??}} | CASNo = 26009-24-5 | ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}} | ChemSpiderID = none }} |Section2={{Chembox Properties | Formula = (C<sub>8</sub>H<sub>6</sub>)<sub>n</sub> | Appearance = Yellow solid | Solubility = Insoluble }} }} '''Poly(''p''-phenylene vinylene)''' ('''PPV''', or '''polyphenylene vinylene''') is a [[Conducting polymers|conducting polymer]] of the [[rigid-rod polymer]] family. PPV is the only polymer of this type that can be processed into a highly ordered crystalline thin film. PPV and its derivatives are electrically conducting upon doping. Although insoluble in water, its precursors can be manipulated in aqueous solution. The small optical band gap and its bright yellow fluorescence makes PPV a candidate in applications such as light-emitting diodes (LED) and photovoltaic devices.<ref name="Reynolds">{{Cite book |title=Handbook of conducting polymers |vauthors=Moratti SC |date=1998 |publisher=M. Dekker |isbn=978-0-8247-0050-8 |veditors=Skotheim TA, Elsenbaumer RL, Reynolds JR |edition=2nd |location=New York |pages=343β351 |chapter=The chemistry and uses of Polyphenylenevinylens}}</ref> Moreover, PPV can be doped to form electrically conductive materials.{{Citation needed|date=March 2018}} Its physical and electronic properties can be altered by the inclusion of functional side groups.
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