Chua, Kai Ying and Azzahari, Ahmad Danial and Abouloula, Cheyma Naceur and Sonsudin, Faridah and Shahabudin, Nurshafiza and Yahya, Rosiyah (2020) Cellulose-based polymer electrolyte derived from waste coconut husk: residual lignin as a natural plasticizer. Journal of Polymer Research, 27 (5). ISSN 1022-9760, DOI https://doi.org/10.1007/s10965-020-02110-8.
Full text not available from this repository.Abstract
Cellulose was isolated from waste coconut husk (Cocos nucifera) via alkali and single bleaching treatment. The isolated cellulose (CH-A-1B) was found to have residual lignin which imparts amorphous character to the polymer matrix as confirmed by X-ray diffraction analysis (XRD). Fourier transform infrared (FTIR) peak at 1507 cm(-1) confirmed the presence of lignin and the appearance of three new peaks at 1320, 1416, and 1595 cm(-1) showed successful attachment of carboxymethyl group onto the cellulose backbone. Carboxymethylation of cellulose from CH-A-1B produced carboxymethyl cellulose (CMC) with lower crystallinity compared to that of the double bleaching treatment cellulose (CH-A-2B). The CMC film prepared by solvent-casting method from CH-A-1B using 38 wt% NaOH possessed the highest conductivity of sigma = 4.82 x 10(-4) mS cm(-1). The electrochemical properties of the CMC polymer electrolyte and the degree of crystallinity of the polymer matrix were found to be influenced by the amount of lignin content which acts as a natural plasticizer.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Carboxymethyl cellulose; Lignin; Polymer electrolyte; XRD analysis; Electrochemical impedance |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Centre for Foundation Studies in Science Centre for Foundation Studies in Science > Chemistry Division Faculty of Science Faculty of Science > Department of Chemistry |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 16 Feb 2024 01:34 |
| Last Modified: | 16 Feb 2024 01:34 |
| URI: | http://eprints.um.edu.my/id/eprint/36747 |
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