Comparison of electrical and microstructural property of polyaniline-poly-ortho-anisidine (PAni-PAnis) copolymer with its homopolymers

Authors

Rosalie B. Battung ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Abel P. Formento ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman
Maricon R. Amada ⋅ PH Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
Ernesto J. Del Rosario ⋅ PH Institute of Chemistry, University of the Philippines Los Baños
Jelynne P. Tamayo ⋅ PH Institute of Chemistry, University of the Philippines Los Baños
Blessie A. Basilia ⋅ PH Industrial Technology Development Institute, Department of Science and Technology

Abstract

The electrical property of chemically synthesized conducting copolymer poly-aniline-co-o-anisidine (PAni-PAnis) was studied and compared with the homopolymers-polyaniline (PAni) and poly-o-anisidine (PAnis)- and a mixed polymer of 1:1 weight ratio PAni and PAnis. Electrical conductivities were measured using the van der Pauw method in an in-line configuration. The copolymer (PAni-PAnis) had conductivity of 0.08968 S/cm, which was intermediate between those of homopolymers, PAni (c = 4.7495 S/cm) and PAnis (c = 0.00013 S/cm). In comparison with the mixed polymer (c = 0.43929 S/cm), the copolymer was found to have lower conductivity, which confirms higher reactivity of o-anisidine compared to aniline monomer during the oxidation process resulting to higher concentration of PAnis in the resulting copolymeric chain. Scanning Electron Microscopy (SEM) images of PAni-PAnis copolymer showed close resemblance to that of PAnis, which has flat, flaky and plate-like microstructures. Fourier Transform Infrared (FTIR) Spectroscopy pattern showed that chemically synthesized homopolymers and copolymers possess stretching mode characteristic of quinoid and benzenoid forms.

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Issue

2005: Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2005-PB-33

Section

Poster Session PB

Published

2005-10-26

How to Cite

[1]

RB Battung, AP Formento, RV Sarmago, MR Amada, EJ Del Rosario, JP Tamayo, and BA Basilia, Comparison of electrical and microstructural property of polyaniline-poly-ortho-anisidine (PAni-PAnis) copolymer with its homopolymers, Proceedings of the Samahang Pisika ng Pilipinas 23, SPP-2005-PB-33 (2005). URL: https://proceedings.spp-online.org/article/view/SPP-2005-PB-33.