Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 126, Issue -, Pages E484-E492Publisher
WILEY-BLACKWELL
DOI: 10.1002/app.36790
Keywords
differential scanning calorimetry (DSC); FTIR; noncrystalline polymers; thermal properties; thin films
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Funding
- Fundamental Research Grant Scheme from Ministry of Higher Education, Malaysia [FP009/2010B]
- Universiti Malaya [UMRG: RG140-11AFR]
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Polymer electrolytes (PEs) with poly(vinylidene fluoridehexafluoropropylene) [P(VdFHFP)] as the polymer host and doped with lithium trifluoromethanesulfonate (LiTf) and 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BMIMTf) were synthesized via a solution casting method. This P(VdFHFP)/LiTf/BMIMTf-based PE achieved about 1.8 x10-3 S/cm at room temperature with 100 parts by weight (pbw) of BMIMTf. A discrepancy was observed when 25 pbw of BMIMTf was doped into the system and was related to the reactivity of Li+ and 1-butyl-3-methylimidazolium cation (BMIM+), which could be corroborated with differential scanning calorimetry scans. Fourier transform infrared spectroscopy and X-ray diffraction revealed the role of P(VdFHFP) as merely a mechanical support with no direct interaction with BMIMTf. Photoluminescence was also used to detect structural alterations in the local environment of PE. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2012
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