Characterization of novel castor oil-based polyurethane polymer electrolytes

Salmiah Ibrahim, Azizan Ahmad, Nor Sabirin Mohamed

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Castor oil-based polyurethane as a renewable resource polymer has been synthesized for application as a host in polymer electrolyte for electrochemical devices. The polyurethane was added with LiI and NaI in different wt% to form a film of polymer electrolytes. The films were characterized by using attenuated total reflectance-Fourier transform infrared spectroscopy, dynamic mechanical analysis, electrochemical impedance spectroscopy, linear sweep voltammetry and transference number measurement. The highest conductivity of 1.42 × 10<sup>-6</sup> S cm<sup>-1</sup> was achieved with the addition of 30 wt% LiI and 4.28 × 10<sup>-7</sup> S·cm<sup>-1</sup> upon addition of 30 wt% NaI at room temperature. The temperature dependence conductivity plot indicated that both systems obeyed Arrhenius law. The activation energy for the PU-LiI and PU-NaI systems were 0.13 and 0.22 eV. Glass transition temperature of the synthesized polyurethane decreased from -15.8 °C to ~ -26 to -28 °C upon salts addition. These characterizations exhibited the castor oil-based polyurethane polymer electrolytes have potential to be used as alternative membrane for electrochemical devices.

Original languageEnglish
Pages (from-to)747-759
Number of pages13
JournalPolymers
Volume7
Issue number4
DOIs
Publication statusPublished - 2015

Fingerprint

Castor Oil
Polyurethanes
Electrolytes
Polymers
Dynamic mechanical analysis
Voltammetry
Electrochemical impedance spectroscopy
Fourier transform infrared spectroscopy
Activation energy
Salts
Membranes
Temperature
Oils

Keywords

  • Castor oil
  • Polymer electrolytes
  • Polyol
  • Polyurethane

ASJC Scopus subject areas

  • Polymers and Plastics
  • Chemistry(all)

Cite this

Characterization of novel castor oil-based polyurethane polymer electrolytes. / Ibrahim, Salmiah; Ahmad, Azizan; Mohamed, Nor Sabirin.

In: Polymers, Vol. 7, No. 4, 2015, p. 747-759.

Research output: Contribution to journalArticle

Ibrahim, Salmiah ; Ahmad, Azizan ; Mohamed, Nor Sabirin. / Characterization of novel castor oil-based polyurethane polymer electrolytes. In: Polymers. 2015 ; Vol. 7, No. 4. pp. 747-759.
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