Studies on the molar conductivity behavior of PMMA-co-MA electrolyte solution at different polymer concentrations

Hanibah, Hussein; Ahmad, Azizan; Hassan, Nur Hasyareeda

doi:10.1063/1.4895211

Cited by 5 publications

(6 citation statements)

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“…Based on the results, succinyl κ-carrageenan has a higher degree of dissociation compared to pristine κ-carrageenan and standard NH 4 Cl. The presence of more electronegative atoms in succinyl κ-carrageenan compared to pristine induced the dissociation of salt through the formation of ion-dipole or coordination of the interaction among oxygen atoms with NH 4 + ion in the salt solution [ 31 , 32 ]. Meanwhile, the formation of strong hydrogen bonding between –OH groups in succinyl κ-carrageenan with Cl− ions of NH 4 Cl, leads to the dissociation of NH 4 Cl salt.…”

Section: Resultsmentioning

confidence: 99%

Effect of Active Site Modification towards Performance Enhancement in Biopolymer κ-Carrageenan Derivatives

et al. 2020

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This research demonstrates a one-step modification process of biopolymer carrageenan active sites through functional group substitution in κ-carrageenan structures. The modification process improves the electronegative properties of κ-carrageenan derivatives, leading to enhancement of the material’s performance. Synthesized succinyl κ-carrageenan with a high degree of substitution provides more active sites for interaction with analytes. The FTIR analysis of succinyl κ-carrageenan showed the presence of new peaks at 1068 cm−1, 1218 cm−1, and 1626 cm−1 that corresponded to the vibrations of C–O and C=O from the carbonyl group. A new peak at 2.86 ppm in 1H NMR represented the methyl proton neighboring with C=O. The appearance of new peaks at 177.05 and 177.15 ppm in 13C NMR proves the substitution of the succinyl group in the κ-carrageenan structure. The elemental analysis was carried out to calculate the degree of substitution with the highest value of 1.78 at 24 h of reaction. The XRD diffractogram of derivatives exhibited a higher degree of crystallinity compared to pristine κ-carrageenan at 23.8% and 9.2%, respectively. Modification of κ-carrageenan with a succinyl group improved its interaction with ions and the conductivity of the salt solution compared to its pristine form. This work has a high potential to be applied in various applications such as sensors, drug delivery, and polymer electrolytes.

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Section: Resultsmentioning

confidence: 99%

Effect of Active Site Modification towards Performance Enhancement in Biopolymer κ-Carrageenan Derivatives

et al. 2020

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“…Nevertheless, other cations can still interact with succinyl-carrageenan structures via ion dipole interactions that cause a slight decrease in wavelength shift for NH 4 + detection after the NH 4 + solution is mixed with all the interference cation solutions. 4,19–23 Fig. 9 illustrates the possible interaction of the succinyl-carrageenan structure with NH 4 + .…”

Section: Resultsmentioning

confidence: 99%

Succinyl-carrageenan on a localised surface plasmon resonance fiber sensor for ammonium ion assays

et al. 2022

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“…However, the effect of polymer concentration (Cpoly) on κ and α in polymer electrolyte membrane has been a secluded topic and unconfirmed theory. Therefore, the determination of κ and Λo for dilute LPE systems at various salt concentrations, Csalt could act as a method to understand the effect of Cpoly on salt dissociation (α) [23].…”

Section: Introductionmentioning

confidence: 99%

Limiting Molar Conductivity Dynamics of κcar/PEO/NaClO4 Aqueous Electrolyte System at Different Temperature

Ramli,

Hanibah,

Nor Hashim

et al. 2024

ajc

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The limiting molar conductivity behaviour (Λo) of κcar/PEO/NaClO4 blend liquid electrolyte systems in aqueous solution at 20 and 25 ºC was studied. The ionic conductivity (κ) of the electrolyte system was measured using Mettler Toledo Seven Compact S230 AC conductivity meter. The κ of the electrolyte was measured at a range of salt concentration, Csalt (10-5-10-8) and at different polymer concentration, Cpoly (0.001-0.003 g cm-3). The data analysis showed a directly proportion relation between Λo and Cpoly, which indicates a decrease in total salt dissociation (α) and consequently, an increase in the formation of ion pairing occurs due to the increase in salt dissociation and less dynamic volume. In addition, a direct relation between Λo and temperature was also observed. An increase in temperature causes a decrease in the total ion pairing while increase the ion movement.

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Studies on the molar conductivity behavior of PMMA-co-MA electrolyte solution at different polymer concentrations

Cited by 5 publications

References 0 publications

Effect of Active Site Modification towards Performance Enhancement in Biopolymer κ-Carrageenan Derivatives

Effect of Active Site Modification towards Performance Enhancement in Biopolymer κ-Carrageenan Derivatives

Succinyl-carrageenan on a localised surface plasmon resonance fiber sensor for ammonium ion assays

Limiting Molar Conductivity Dynamics of κcar/PEO/NaClO4 Aqueous Electrolyte System at Different Temperature

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