Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/77266
Title: Thermal analysis of conducting polymers. Part 3. Isothermal thermogravimetry of doped and pristine polyaniline
Authors: Chan, H.S.O. 
Gan, L.M. 
Hor, T.S.A. 
Seow, S.H.
Zhang, L.H.
Issue Date: 30-Sep-1993
Citation: Chan, H.S.O.,Gan, L.M.,Hor, T.S.A.,Seow, S.H.,Zhang, L.H. (1993-09-30). Thermal analysis of conducting polymers. Part 3. Isothermal thermogravimetry of doped and pristine polyaniline. Thermochimica Acta 225 (1) : 75-83. ScholarBank@NUS Repository.
Abstract: A study of the thermooxidative decomposition of electroactive polyanilines (PANI) has been carried out using isothermal thermogravimetry (TG). At low decomposition temperatures the process is governed by first-order kinetics, while at higher temperatures the decomposition is controlled by a one-dimensional diffusion mechanism. This has been attributed to changes in sample geometry, viscosity, and secondary cross-linking reactions and structural rearrangement at high temperatures which make it more difficult for the volatile fragments to diffuse to the surface of the polymer matrix. The activation energy ΔE values for the expulsion of free water/HCl and dopant HCl have been determined from the Arrhenius plots and are in good agreement with those obtained previously by differential scanning calorimetry (DSC). © 1993.
Source Title: Thermochimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/77266
ISSN: 00406031
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

18
checked on Mar 10, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.