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

Authors

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