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|Title:||Comparative study of electroactive polyaniline, poly (o-aminobenzyl alcohol) and poly (o-aminobenzoic acid)|
|Authors:||Chan, H.S.O. |
|Source:||Chan, H.S.O.,Ng, S.C.,Sim, W.S. (1994). Comparative study of electroactive polyaniline, poly (o-aminobenzyl alcohol) and poly (o-aminobenzoic acid). New Polymeric Materials 4 (2) : 83-85. ScholarBank@NUS Repository.|
|Abstract:||Polyaniline (PANI), poly(o-aminobenzyl alcohol) (PoABAL), and poly(o-aminobenzoic acid) (PoABAC) have been synthesized and their properties compared by X-ray photoelectron spectroscopy (XPS), thermogravimetry (TG), differential scanning calorimetry (DSC), infrared (IR) and ultraviolet/visible (UV/vis) spectroscopy. The lower conductivities measured for PoABAL (≈10-1 Scm-1) and PoABAC (≈10-9Scm-1) can be rationalized on the basis of the bulky substituent groups, which lower the degree of conjugation along the polymer chain as well as decreasing inter-chain diffusion of charge carriers. For PoABAC, where self-doping is possible via the COOH group, the very low conductivity measured is attributed to the electron-withdrawing effect of the acid group and electron localization through the formation of a six-membered chelate structure.|
|Source Title:||New Polymeric Materials|
|Appears in Collections:||Staff Publications|
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