Journal
POLYMER BULLETIN
Volume 78, Issue 9, Pages 5137-5152Publisher
SPRINGER
DOI: 10.1007/s00289-020-03361-7
Keywords
Jackfruit gum; Epoxidation; Structural characterization; Polymer solid electrolyte
Categories
Funding
- Hanoi University of Science and Technology (HUST) [T2018-PC-229]
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Epoxidized jackfruit gum (EJG) was prepared and characterized. An attempt was made to prepare a solid polymer electrolyte from EJG, showing improved ion conductivity attributed to the strong interaction between EJG and LiClO4. The epoxy group content of the sample reached 95 mol% after treatment, leading to enhanced ion conductivity.
Epoxidized jackfruit gum (EJG) was prepared and characterized. An attempt to prepare a solid polymer electrolyte from EJG was made. The characterizations of epoxidized jackfruit gum were carried out through FT-IR spectroscopy, NMR spectroscopy, gel permeation chromatography, nitrogen content determination, water uptake determination and ion exchange capacity. The ion conductivity, differential scanning calorimetry, and SEM images of the blends of EJG and LiClO(4)were characterized. The results indicated the epoxy group content of the sample achieved 95 mol% after 3 h of the epoxidation. During the epoxidation, the nitrogen content reduced, whereas the phospholipid content of the samples did not change. The molecular weight of samples reduced during the epoxidation. The ion conductivity of EJG/LiClO4/epoxidized natural rubber was improved, i.e. in order of 10(-4)S/cm which was attributed to the presence of epoxy group in EJG. The liquid crystal may form in EJG/LiClO(4)blends. These phenomena may suggest the strong interaction between epoxy group in EJG and LiClO4.
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