Synthesis and characterization of polyaniline-polyvinyl chloride blends doped with sulfamic acid in aqueous tetrahydrofuran

• Authors: Sadia Ameen , Vazid Ali , M. Zulfequar , M. Mazharul Haq , Mushahid Husain
• Languages of publication: EN

Abstracts

EN

The temperature dependence of direct current (dc) conductivity was studied for various samples of polyaniline-polyvinylchloride (PANI-PVC) blended films. Polyaniline was doped with different concentrations of sulfamic acid in aqueous tetrahydrofuran (THF) and the blended films were prepared by varying the amount of doped PANI relative to a fixed amount of PVC. The dc conductivity of PANI-PVC blended films was measured to determine the effect of sulfamic acid (dopant) in the temperature range (300–400K). The mechanism of conduction is explained by a two-phase model. In order to evaluate the effect of the dopant, conductivity-derived parameters such as the pre-exponential factor (σ
o) and the activation energy (ΔE) were calculated. The structural changes of polyaniline-PVC blended films were characterized by FTIR spectroscopy that explores information about the suitability of the dopant in the chemical doping process.

Keywords

EN

Electrical conductivity; polymer blends; doping; infrared spectra

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2006
• Volume: 4
• Issue: 4
• Pages: 565-577

Dates

published

1 - 12 - 2006

online

1 - 12 - 2006

Contributors

author

Sadia Ameen

author

Vazid Ali

• Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India

author

M. Zulfequar

• Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India

author

M. Mazharul Haq

• Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India

author

Mushahid Husain

• Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India

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Identifiers

DOI

10.2478/s11532-006-0044-y