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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 5
BKCSDE 32(5)
May 20, 2011 

Novel Electroluminescent Polymer Derived from Pyrene-Functionalized Polyaniline
Chellachamy Anbalagan Amarnath, Hyoung Kun Kim, Dong Kee Yi,*, Sanghyup Lee, Young Rag Do, Ungyu Paik*
Polyaniline, Electroluminescent, Pyrene group, N-Alkylation
A solution processable polymer was synthesized, by incorporating pyrene groups into the backbone of the polyaniline chain, and used as an emissive layer in an organic light emitting diode. The polyaniline base was reacted with acid chloride of pyrene butyric acid to form pyrene-functionalized polyaniline chains. The source of pyrene moiety was acid chloride of pyrene butyric acid. The formation of polymer from acid chloride of pyrene butyric acid and polyaniline was confirmed by the FTIR and 1H-NMR spectroscopy. Differential scanning calorimetry revealed high glass transition temperature of 210 oC. Due to the presence of pyrene moieties in the backbone, the polyaniline synthesized in the present study is solution processable with light emitting property. The photoluminescence spectrum of the polymer revealed that emission lies in the blue region, with a peak at 475 nm. The light emitting device of this polymer exhibits the turn-on voltage of 15 V.
1495 - 1499
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