Lignin and cellulose wood for Polymeric Electrolyte
FT-IR Spectroscopy, XPS and XRD works have been used to characterize lignin and cellulose from several hardwoods of Sabah. The FT -IR has revealed that all of the five hardwoods lignin had a common pattern of spectra, but only the Kapur and Belian lignin have shown lower intensities of bands compare...
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| Format: | Research Report |
| Language: | English English |
| Published: |
Universiti Malaysia Sabah
2009
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| Online Access: | https://eprints.ums.edu.my/id/eprint/23045/1/Lignin%20and%20cellulose%20wood%20for%20Polymeric%20Electrolyte.pdf https://eprints.ums.edu.my/id/eprint/23045/6/Lignin%20and%20cellulose%20wood%20for%20Polymeric%20Electrolyte.pdf https://eprints.ums.edu.my/id/eprint/23045/ |
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| Institution: | Universiti Malaysia Sabah |
| Language: | English English |
| Summary: | FT-IR Spectroscopy, XPS and XRD works have been used to characterize lignin and cellulose from several hardwoods of Sabah. The FT -IR has revealed that all of the five hardwoods lignin had a common pattern of spectra, but only the Kapur and Belian lignin have shown lower intensities of bands compared to the Keranji, Merbau and Nyatoh lignin between 3460 - 1300 cm region. All lignin have shown a broad band at
34100-3460 cm, attributed to the hydroxyl groups in phenolic and al iphatic structures (OH stretching).
Solid polymer electrolytes (SPE) produced using lignin / cellulose sample - was partially dissolved in the THF solvent and prior to blend with ENR-50 rubber. Ionic conductivity measurements at various temperatures were also obtained over the range of 25-80oC. The electrochemical stability of polymer electrolytes were also obtained; impedance measurement were taken for several days. Ionic conductivity were also determined. DSC analyzer was used to determine thermal properties of the polymer electrolyte samples. All samples display a single glass transition temperature, T g. The changes T g values were observed when different weight per cent of Li salt and lignin/cellulose added into the systems |
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