Synthesis and characterizations of phthaloyl chitosan-based polymer electrolytes

Aziz, N.; Majid, S.R.; Arof, A. K.

doi:10.1016/j.jnoncrysol.2012.04.019

Cited by 56 publications

(34 citation statements)

References 37 publications

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“…From the literature, there are many reports on studies of the electrochemical stability of proton conducting polymer electrolytes using stainless steel working, counter and reference electrodes [56][57][58][59][60]. In the present work, the linear sweep voltammogram is shown in Fig.…”

Section: Resultsmentioning

confidence: 88%

“…Hema et al [54] reported that t ion for all the compositions of the PVA-NH 4 Br electrolyte systems lies between 0.93 and 0.96 at 303 K. The ionic transference number for potato starch-ammonium iodide (NH 4 I) electrolyte was reported to be >0.95 [55]. Aziz et al [56] showed that t ion for the highest conducting phthaloyl chitosan-ammonium thiocyanate (NH 4 SCN) electrolyte was 0.912. The results from the literature are comparable with the present work.…”

Section: Resultsmentioning

confidence: 99%

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Protonic Transport Analysis of Starch-Chitosan Blend Based Electrolytes and Application in Electrochemical Device

Shukur

Ithnin

Kadir

2014

Molecular Crystals and Liquid Crystals

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Two polymer electrolyte systems (unplasticized and plasticized) based on starchchitosan blend doped with ammonium bromide (NH 4 Br) were prepared. The conductivity was found to be influenced by the number density (n) and mobility (μ) of the ions. The highest conducting plasticized electrolyte had n and μ values of 8.75 × 10 18 cm −3 and 1.03 × 10 −3 cm 2 V −1 s −1 , respectively. Ionic transference number for the highest conducting plasticized electrolyte was found to be 0.92. An electrochemical double layer capacitor (EDLC) using the highest conducting plasticized electrolyte was cycled for 500 times at 0.048 mA cm −2 .

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Protonic Transport Analysis of Starch-Chitosan Blend Based Electrolytes and Application in Electrochemical Device

Shukur

Ithnin

Kadir

2014

Molecular Crystals and Liquid Crystals

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“…Proton NMR (Nuclear Magnetic Resonance) exhibits peaks at 3.0 and 7.5 ppm [30]. Aziz et al [31] reported that the diffractogram of phthaloyl chitosan showed only one broad peak at around 2θ = 18°. Phthaloyl chitosan can be considered as chitosan stripped off its hydrogen atoms, except for the hydrogen in hydroxyl group.…”

Section: General Characteristicsmentioning

confidence: 99%

Chitosan and Phthaloylated Chitosan in Electrochemical Devices

Osman¹,

Arof²

2017

Biological Activities and Application of Marine Polysaccharides

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Chitin and chitosan are widely found in nature. Chitin can be obtained from fungi and in the lower animals. Chitosan can be derived from chitin. The process of chitosan derivation from chitin is called deacetylation. Chitosan is non-toxic, odourless, biocompatible in animal tissues and enzymatically biodegradable. It has found many applications in the fields of cosmetics, wound healing, dietetics and waste-water treatment. Chitosan holds many promising potentials, but its inability to dissolve in many of the common solvents has restricted its application. Hence, chitosan has been modified, and there are now many derivatives of chitosan. In the current chapter, we discuss chitosan and only the phthaloyl chitosan derivative. Their applications in several electrochemical devices are also discussed.

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“…However, the insolubility of chitosan in a large number of solvents has limited it to be utilized widely. This is due to the rigid crystalline structure of chitosan caused by the formation of hydrogen bonding between amino and hydroxyl groups (Aziz et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Dielectric and AC conductivity behavior of Hexanoyl Chitosan-NaI based polymer electrolytes

Muhammad

Jamal²,

Winie

2016

Int. j. adv. appl. sci

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Hexanoyl chitosan-sodium iodide (NaI) complexes were prepared using solution casting method. The temperature dependence conductivity was performed in the temperature range of 303-343K. From the dielectric studies, it has been observed that the dielectric constant, εr and dielectric loss, εi increases with temperature in the lower frequency region and almost negligible in the higher frequency region. This behavior can be explained on the basis of electrode polarization. Plot of real part, Mr and imaginary part, Mi of modulus versus frequency indicates that the systems are predominantly ionic conductor. Relaxation time calculated from the peak of Mi at various temperatures appears to be thermally activated. The conductivity, σ(ω) is found to be almost frequency independent at low frequencies and became frequency dependent at high frequencies. The transference number measurement showed that the conductivity was predominantly ionic.

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Synthesis and characterizations of phthaloyl chitosan-based polymer electrolytes

Cited by 56 publications

References 37 publications

Protonic Transport Analysis of Starch-Chitosan Blend Based Electrolytes and Application in Electrochemical Device

Protonic Transport Analysis of Starch-Chitosan Blend Based Electrolytes and Application in Electrochemical Device

Chitosan and Phthaloylated Chitosan in Electrochemical Devices

Dielectric and AC conductivity behavior of Hexanoyl Chitosan-NaI based polymer electrolytes

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