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Preparation and characterization of a solid polymer electrolyte PEO‐ENR50 (80/20)‐LiCF 3 SO 3
Author(s) -
Noor S. A. M.,
Ahmad A.,
Rahman M. Y. A.,
Talib I. A.
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29951
Subject(s) - crystallinity , differential scanning calorimetry , ethylene oxide , amorphous solid , polymer chemistry , ionic conductivity , polymer , materials science , trifluoromethanesulfonate , electrolyte , chemistry , analytical chemistry (journal) , chemical engineering , copolymer , crystallography , organic chemistry , physics , electrode , engineering , thermodynamics , catalysis
The preparation and characterization of a polymer electrolyte films containing 80 wt % of poly (ethylene oxide) (PEO) and 20 wt % epoxidized natural rubber (ENR50) complexed with LiCF 3 SO 3 has been reported. The ac impedance data showed good conducting properties of the solid polymer electrolyte (SPE) films. The greatest room temperature ionic conductivity of 7.5 × 10 −5 S cm −1 was obtained at 25 wt % of LiCF 3 SO 3 salt. This result has been supported by differential scanning calorimeter and X‐ray diffraction analysis. Analysis differential scanning calorimetry showed the relative percentage of crystallinity and T m of PEO decreased with the increasing wt % of LiCF 3 SO 3 . Analysis with X‐ray diffraction suggested that the semicrystalline nature of PEO turned to amorphous due to the presence of LiCF 3 SO 3 . © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009