Please use this identifier to cite or link to this item: https://doi.org/10.1002/pat.1994.220050305
Title: X-ray photoelectron spectroscopic studies of charge transfer interactions in electroactive polyaniline
Authors: Tan, K.L. 
Kang, E.T. 
Neoh, K.G. 
Issue Date: Mar-1994
Source: Tan, K.L.,Kang, E.T.,Neoh, K.G. (1994-03). X-ray photoelectron spectroscopic studies of charge transfer interactions in electroactive polyaniline. Polymers for Advanced Technologies 5 (3) : 171-177. ScholarBank@NUS Repository. https://doi.org/10.1002/pat.1994.220050305
Abstract: Four modes of charge transfer interactions in polyaniline (PAN), viz. acid protonation, self-doping, charge transfer interactions with organic acceptors, and charge transfer interactions with surface grafted functional polymers have been studied by X-ray photoelectron spectroscopy (XPS). In the case of acid protonation, the protonation behavior of volatile and non-volatile acid differs. The structures of sulfonated leucomeraldine (LM) and nigraniline (NA) are similar to those of sulfonated and self-protonated emeraldine (EM). A substantially higher degree of charge transfer interaction with the organic acceptors is observed for EM film that has been subjected to one cycle of acid/base treatment. The charge transfer interactions with the organic acceptors have proceeded further than the pure formation of molecular complexes. Both pristine and Ar plasma or O3 pretreated EM films are susceptible to surface modifications by graft copolymerization. The protonic acid functional groups of the graft readily give rise to a self-protonated EM surface.
Source Title: Polymers for Advanced Technologies
URI: http://scholarbank.nus.edu.sg/handle/10635/91800
ISSN: 10427147
DOI: 10.1002/pat.1994.220050305
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