Conductivity enhancement via chemical modification of chitosan based green polymer electrolyte

Composite polymer electrolytes based on MG49 and carboxymethyl cellulose from kenaf

“…The absorption at 1640 cm -1 region in Figure 1 is attributed to the stretching and bending vibrations of the OH groups of cellulose [8]. However, after the substitution of carboxymetyhl group, the intensity of the absorption peak increased which corresponded to the overlapping of -OH group of cellulose and -CH 2 COONa [6]. It is an evidence that hydroxyl group of cellulose was substitute with carboxyl group of carboxymethyl cellulose [11].…”

“…The introduction of carboxymethyl cellulose from kenaf in polymer electrolytes as an alternative to traditional glass fibres such as Al 2 O 3 and TiO 2 in commercial composite materials has drawn much attention [4]. Various sources of cellulose such as orange peel [5], chitosan [6], sago starch [7], etc have been used to synthesize carboxymethyl cellulose by different method depends on the application of that carboxymethyl cellulose.…”

Bifunctional ionic liquid in conductive biopolymer based on chitosan for electrochemical devices application

“…3(i) indicates the presence of NH 3 + that has been protonated by the acetic acid [35,36]. The protonation of the hydroxyl bands, O\ \H have also been observed with the broadening of the O\ \H stretching peaks which also might be due to the interaction of the hydroxyl groups with the water molecules incorporated in the chitosan film [37], and the shift of the peak towards lower wavenumber at 3276 cm −1 to 3265 cm −1 , suggesting the formation of OH 2 + .…”

Effect of ammonium carbonate salt concentration on structural and ionic conductivity of cellulose based solid polymer electrolytes

“…Solid polymer electrolytes (SPE) is viewed as a good alternative in secondary batteries electrolytes since it possess good dimensional and thermal stability, no leakage, flexibility and ease to fabricate and good electrode-electrolyte contact [2]. Several types of SPE have been previously reported such as poly(ethylene oxide) (PEO) [3], polymethyl methacrylate (PMMA) [4], Chitosan (CS) [5], polyacrylonitrile (PAN) [6] and polyvinyl chloride (PVC) [7].…”