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has been cited by the following article:

• TITLE: Solid polymeric electrolyte of poly(ethylene)oxide-50% epoxidized natural rubber-lithium triflate (PEO-ENR50-LiCF3SO3)

  AUTHORS: Siti Aminah bt. Mohd Noor, Azizan Ahmad, Mohd. Yusri bin Abd. Rahman, Ibrahim Abu Talib

  KEYWORDS: A. Polymers; C. Differential Scanning Calorimetry (DSC); C. X-Ray Diffraction;D. Electrical Conductivity; D. Electrical Properties

  JOURNAL NAME: Natural Science, Vol.2 No.3, April 12, 2010

  ABSTRACT: A solid polymer electrolyte (SPE) films consist-ing of polyethylene oxide (PEO), 50% epoxi-dized natural rubber (ENR50) and LiCF3SO3 with various compositions of PEO-ENR50 and vari-ous weight percentage of LiCF3SO3 were pre-pared by solution casting technique. The poly-mer electrolyte films were characterized using DSC, XRD and AC impedance spectroscopy. The SPE with the PEO-ENR50 composition of 70-30 shows the highest conductivity of 4.2 × 10-5 Scm-1 at the 15 wt.% of LiCF3SO3 compared with the other composition of PEO/ENR50. This composition was then chosen to investigate the effect of LiCF3SO3 on the thermal property, structure and conductivity of the electrolyte. The highest room temperature conductivity of 1.4 × 10-4 Scm-1 was achieved at 20 wt.% of LiCF3SO3. The conductivity result is supported by the DSC and XRD analysis which showed the semi- crystalline nature of PEO turning to amor-phous state due to the increase in LiCF3SO3 content.