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|Section2= }} Poly(''p''-phenylene vinylene) (PPV, or polyphenylene vinylene) is a conducting polymer of the rigid-rod polymer family. PPV is the only polymer of this type that can been 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.〔Skotheim, T. A. et al. Handbook of Conducting Polymers, 2nd ed.; CRC Press: New York, 1997; pp 343-351. ISBN 0-8247-0050-3, ISBN 978-0-8247-0050-8〕 Moreover, PPV can be doped to form electrically conductive materials.〔need reference〕 Its physical and electronic properties can be altered by the inclusion of functional side groups. ==Preparation== PPVs can be synthesized by a variety of methods, the details of which determine purity and molecular weight. The most popular methods proceed via p-xylylene intermediates after a base induced elimination from α,α'-disubstituted para-xylenes.〔 :520px 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Poly(p-phenylene vinylene)」の詳細全文を読む スポンサード リンク
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