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Title: Structural studies of poly(p-phenyleneamine) and its oxidation
Authors: Kang, E.T. 
Neoh, K.G. 
Tan, T.C. 
Khor, S.H. 
Tan, K.L. 
Issue Date: 1-Jan-1990
Source: Kang, E.T.,Neoh, K.G.,Tan, T.C.,Khor, S.H.,Tan, K.L. (1990-01-01). Structural studies of poly(p-phenyleneamine) and its oxidation. Macromolecules 23 (11) : 2918-2926. ScholarBank@NUS Repository.
Abstract: The structural changes associated with the chemical oxidation of poly(p-phenyleneamine) or 'leucoemeraldine' (PLM) were determined quantitatively by X-ray photoelectron spectroscopy (XPS) and qualitatively by infrared (IR) absorption spectroscopy and t thermogravimetric analysis (TGA). Oxidative 'doping' of PLM by organic electron acceptors such as tetrachloro-o-benzoquinone (o-chloranil) and tetrabromo-o-benzoquinone (o-bromanil) involved first the oxidation of the amine nitrogen and also the formation of the imine structure through hydrogen transfer from the pristine amine nitrogen to the acceptor. The so-produced imine nitrogen was in turn doped by the acceptor. XPS data of the PLM-halobenzoquinone complexes indicated that the nitrogenonium cations of the polymer were balanced by the halogen and the oxygen or benzoquinone anions.
Source Title: Macromolecules
ISSN: 00249297
Appears in Collections:Staff Publications

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