Synthesis and characterization of castor oil-based polyurethane for potential application as host in polymer electrolytes

S. Ibrahim, Azizan Ahmad, N. S. Mohamed

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Polyurethane (PU) based on polyol, derived from castor oil has been synthesized and characterized for potential use as a base material for electrolytes. Transesterification process of castor oil formed a polyol with hydroxyl value of 190 mg KOH g-1 and molecular weight of 2786 g mol.1. The polyols together with 4,4-'-diphenylmethane diisocyanate were used to synthesize the desired bio-based PU. The molecular structure of PU was investigated by Fourier transform infrared (FTIR) spectroscopy. The disappearance of NCO peak in the FTIR spectrum at 2270.2250 cm-1 showed that diisocyanate has completely reacted to form PU. Morphological characteristic of the PU film was analysed using scanning electron microscopy, whereas thermal characteristics of the materials were characterized using dynamic mechanical analysis and thermal gravimetric analysis. The cross-sectional micrograph showed that the prepared film was highly amorphous and homogeneous. Thermal studies revealed that the film had low glass transition temperature,.15.8°C, and was thermally stable up to 259°-C. These observations indicated the synthesized PU possessed favourable properties to act as a base material in polymer electrolytes.

Original languageEnglish
Pages (from-to)1155-1161
Number of pages7
JournalBulletin of Materials Science
Volume38
Issue number5
Publication statusPublished - 1 Sep 2015

Fingerprint

Castor Oil
Polyurethanes
Electrolytes
Polymers
Polyols
Gravimetric analysis
Transesterification
Dynamic mechanical analysis
Hydroxyl Radical
Molecular structure
Fourier transform infrared spectroscopy
Oils
Fourier transforms
Molecular weight
Infrared radiation
Scanning electron microscopy
Hot Temperature
polyol

Keywords

  • 4,4'-diphenylmethane diisocyanate
  • Castor oil
  • Polyol
  • Polyurethane
  • Transesterification

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

Cite this

Synthesis and characterization of castor oil-based polyurethane for potential application as host in polymer electrolytes. / Ibrahim, S.; Ahmad, Azizan; Mohamed, N. S.

In: Bulletin of Materials Science, Vol. 38, No. 5, 01.09.2015, p. 1155-1161.

Research output: Contribution to journalArticle

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