Isolation and characterization of hemicellulose blended carboxymethylcellulose films incorporated with lithium perchlorate as a potential ion conductive biopolymer
By Weerasooriya, P.R.D; Pei Chee, Wee; Mohamad Haafiz, M.K.; Sohrab Hossain, Md.; Hazwan Hussin, M.
Published in Materials Letters
2021
Abstract
In the present study, hemicellulose blended carboxymethyl cellulose (H-CMC) films were prepared using solution casting process at a weight ratio of 3:2 of hemicellulose and CMC. The physicochemical properties and ionic conductivity of the prepared films were developed by incorporating lithium perchlorate (LiClO4) (1–5 wt%) as a doped salt. Morphology, chemical behavior, crystallinity, mechanical strength and ionic conductivity of the LiClO4 incorporated H-CMC were evaluated using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy analysis, X-ray diffraction (XRD), tensile test and electrochemical impedance spectroscopy (EIS) respectively. FTIR analysis showed the complexation between host polymer and the doped salt. The highest tensile strength is associated with 3 wt% of LiClO4 and the highest ionic conductivity was obtained with 5 wt% of LiClO4. Therefore 5 wt% of LiClO4 was identified as the best loading to be incorporated with H-CMC films with the purpose of developing ion conductive H-CMC-LiClO4 films.