Development of Carboxymethyl Chitosan Based Green Polymer Electrolyte

Mobarak, Nadhratun Naiim; Ramli, Nazaruddin; Ahmad, Azizan; Abdullah, Md. Pauzi

doi:10.1166/jbmb.2013.1336

Cited by 3 publications

(4 citation statements)

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“…In fact, the -NH2 groups trap protons and slow down their movement [49]. This might also explain the fact that the values of ionic conductivity obtained are higher than those reported by Mobarak et al for carboxymethyl chitosan prepared under the same conditions [45]. In order to enhance the ionic conductivity of these chitin-based electrolytes, different amounts ranging from 20% up to 60% of [Bmim][Ac] ionic liquid were added to the solution made of the sample with medium degree of modification, e.g., CMChit_30, in 1% acetic acid solution before casting into films.…”

Section: Films Processing and Characterizationmentioning

confidence: 60%

“…In fact, the -NH2 groups trap protons and slow down their movement [49]. This might also explain the fact that the values of ionic conductivity obtained are higher than those reported by Mobarak et al for carboxymethyl chitosan prepared under the same conditions [45]. for carboxymethyl chitin derivatives were higher compared to pure chitin, which may be due to the ion movement through a hopping mechanism as proposed in scheme A of Figure 9.…”

Section: Films Processing and Characterizationmentioning

confidence: 69%

“…The mean reflection peaks related to chitin are around 9.6 • and 19.8 • . The peak at 19.8 • is characteristic of the strong hydrogen bond network present in the chitin structure [45]. The native chitin used in the present study exhibits a crystallinity index (CI) of 63%.…”

Section: Preparation and Characterization Of Chitin Derivativesmentioning

confidence: 87%

“…This ionic movement is enhanced in the carboxymethylated chitin thanks to the polarization of carboxymethyl groups due to the presence of the oxygen ion pairs. Moreover, chain flexibility and perhaps their entanglement induced by the decrease of the crystallinity may also favor the ion movement in the system [45]. The reduction of the conductivity from CMChit_15 to CMChit_45 seems as contradictory with the presence in the casted films of insoluble particles that should constrain the ionic conductivity.…”

Section: Films Processing and Characterizationmentioning

confidence: 99%

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Chemical Modification and Processing of Chitin for Sustainable Production of Biobased Electrolytes

et al. 2020

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In the present work we report on the development of a novel and sustainable electrolyte based on chitin. Chitin biopolymer was carboxymethylated in simple, mild, and green conditions in order to fine-tune the final properties of the electrolyte. To this end, chitin was modified for various reaction times, while the molar ratio of the reagents, e.g., sodium hydroxide and monochloroacetic acid, was maintained fixed. The resulting chitin derivatives were characterized using various techniques. Under optimized conditions, modified chitin derivatives exhibiting a distinct degree of carboxymethylation and acetylation were obtained. Structural features, morphology, and properties are discussed in relation to the chemical structure of the chitin derivatives. For electrolyte applications, the ionic conductivity increased by three magnitudes from 10−9 S·cm−1 for unmodified chitin to 10−6 S·cm−1 for modified chitin with the highest degree of acetylation. Interestingly, the chitin derivatives formed free-standing films with and without the addition of up to 60% of ionic liquid, the ionic conductivity of the obtained solid electrolyte system reaching the value of 10−3 S·cm−1.

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Section: Films Processing and Characterizationmentioning

confidence: 60%

“…In fact, the -NH2 groups trap protons and slow down their movement [49]. This might also explain the fact that the values of ionic conductivity obtained are higher than those reported by Mobarak et al for carboxymethyl chitosan prepared under the same conditions [45]. for carboxymethyl chitin derivatives were higher compared to pure chitin, which may be due to the ion movement through a hopping mechanism as proposed in scheme A of Figure 9.…”

Section: Films Processing and Characterizationmentioning

confidence: 69%

Section: Preparation and Characterization Of Chitin Derivativesmentioning

confidence: 87%

Section: Films Processing and Characterizationmentioning

confidence: 99%

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Chemical Modification and Processing of Chitin for Sustainable Production of Biobased Electrolytes

et al. 2020

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Liquid handling properties of carboxymethyl modified chitosan nonwovens for medical dressings

Xue

et al. 2023

Journal of Molecular Structure

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Bio-Based Polymer Electrolytes for Electrochemical Devices: Insight into the Ionic Conductivity Performance

et al. 2020

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With the continuing efforts to explore alternatives to petrochemical-based polymers and the escalating demand to minimize environmental impact, bio-based polymers have gained a massive amount of attention over the last few decades. The potential uses of these bio-based polymers are varied, from household goods to high end and advanced applications. To some extent, they can solve the depletion and sustainability issues of conventional polymers. As such, this article reviews the trends and developments of bio-based polymers for the preparation of polymer electrolytes that are intended for use in electrochemical device applications. A range of bio-based polymers are presented by focusing on the source, the general method of preparation, and the properties of the polymer electrolyte system, specifically with reference to the ionic conductivity. Some major applications of bio-based polymer electrolytes are discussed. This review examines the past studies and future prospects of these materials in the polymer electrolyte field.

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Development of Carboxymethyl Chitosan Based Green Polymer Electrolyte

Cited by 3 publications

References 0 publications

Chemical Modification and Processing of Chitin for Sustainable Production of Biobased Electrolytes

Chemical Modification and Processing of Chitin for Sustainable Production of Biobased Electrolytes

Liquid handling properties of carboxymethyl modified chitosan nonwovens for medical dressings

Bio-Based Polymer Electrolytes for Electrochemical Devices: Insight into the Ionic Conductivity Performance

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