Preparation and characterization of ion exchange membranes based on polyaniline and thermoplastic polyurethane blends

Authors

  • Muhammad Aamir Shehzad Department of Polymer and Process Engineering, University of Engineering and Technology, Lahore, Pakistan
  • Asif Ali Qaiser Department of Polymer and Process Engineering, University of Engineering and Technology, Lahore, Pakistan

Keywords:

Polyaniline, thermoplastic polyurethane, ion exchange membranes, 4-probe electrical conductivity, FTIR

Abstract

This research work discusses the synthesis and characterization of cation-exchange membranes comprising thermoplastic polyurethane (TPU) and polyaniline (PAni) doped with camphor sulphonic acid (CSA). Polyaniline was synthesized by solution-phase polymerization technique and in these blend membranes PAni content varied between 10-40 % of PAni. The chemical structure of these composite membranes were studies using Fourier-transform infrared (FTIR) spectroscopy whereas mechanical and electrical properties were measured using Universal testing machine and 4-probe electrical conductivity measurement set up, respectively. Cation exchangeability was determined by measuring ion-exchange capacity of these membranes. The FTIR spectra showed successful incorporation of PAni in the blend where infrared characteristic peaks increased by increasing PAni content. Ion-exchange capacity and electrical conductivity increased by increasing PAni content in the membranes whereas the mechanical properties showed a significant decrease confirming that PAni was incorporated as non-reinforcing filler in these blends.

Author Biographies

Muhammad Aamir Shehzad, Department of Polymer and Process Engineering, University of Engineering and Technology, Lahore, Pakistan

Lecturer, Department of Polymer and Process Engineering, University of Engineering and Technology, Lahore-Pakistan

Asif Ali Qaiser, Department of Polymer and Process Engineering, University of Engineering and Technology, Lahore, Pakistan

Associate Professor (Chairman): Department of Polymer and Process Engineering, University of Engineering and Technology, Lahore, Pakistan

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Published

2014-07-22

How to Cite

Shehzad, M. A., & Qaiser, A. A. (2014). Preparation and characterization of ion exchange membranes based on polyaniline and thermoplastic polyurethane blends. Journal of the Pakistan Institute of Chemical Engineers, 42(1), 63–69. Retrieved from http://piche.org.pk/journal/index.php/jpiche/article/view/162

Issue

Vol. 42 No. 1 (2014): Journal of the Pakistan Institute of Chemical Engineers

Section

Articles

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