Synthesis of Polymer Electrolyte Membrane based on Acid-Base Complex Pair and Its Characteristics

Gustian, Irfan; Çelik, Sevim Ünügür; Zainuddin, Ahmad Anwar; Suratno, Wawang; Bozkurt, Ayhan; Siregar, Rustam E.

doi:10.5614/j.math.fund.sci.2014.46.1.5

Cited by 7 publications

(5 citation statements)

References 18 publications

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“…This change in the trend in conductivity was attributed to the formation of an electric double layer . By extrapolating the plateau regions observed in Figure to a frequency of zero, the dc conductivities of the samples can be estimated, and those values are listed in Table . It is also clear from Figure that all complexes and HL follow the power law, σ ac = A ω s , where A is a temperature‐dependent constant, and s is the frequency exponent, which is a measure of the degree of interaction between the charge carriers and the environment .…”

Section: Resultsmentioning

confidence: 99%

Electrical properties, cyclic voltammetry, and anticancer activities of N‐(4‐(2‐hydrazinyl‐2‐oxoethoxy)phenyl) acetamide complexes

Morsi

Mandour

Fathi

et al. 2019

J of Physical Organic Chem

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A series of Cu (II), Mn (II), Co (II), Zn (II), Cr (III), and VO (IV) complexes with N-(4-(2-hydrazinyl-2-oxoethoxy)phenyl) acetamide (HL) were synthesized. The electrical properties of HL and its Cu (II), Co (II), Zn (II), and Cr (III) complexes were measured in the 298 to 373 K temperature range. The activation energy of each of these metal complexes was estimated. The conductivities of the metal complexes with HL increase with increasing temperature, revealing their semiconducting nature and potential for use in electronic devices. The complexes exhibited higher conductivities than HL itself. The kinetic parameters of these complexes, such as their stability constants (K c values) and Gibbs free energies (ΔG°), were investigated by using cyclic voltammetry. These parameters indicated that the prepared compounds exhibited better stability and adsorption properties than paracetamol (PA), which is the parent compound of these species. The complexes were more cytotoxic than the ligand towards MCF-7 human breast cancer cells.

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Section: Resultsmentioning

confidence: 99%

Electrical properties, cyclic voltammetry, and anticancer activities of N‐(4‐(2‐hydrazinyl‐2‐oxoethoxy)phenyl) acetamide complexes

Morsi

Mandour

Fathi

et al. 2019

J of Physical Organic Chem

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“…This phenomenon has been reported by previous studies. [15][16][17] is the peak stretching of O-H, where water is absorbed in the cavity and zeolite channel. While the peak at about 1635 cm -1 corresponds to the bending mode of O-H water.…”

Section: Resultsmentioning

confidence: 99%

“…[15][16][17] The sulfonation degree (DS) of polysulfone was measured by acid-base titrimetric method. The sulfonation ratio of sulfonated polysulfone was calculated as 187% ((mol SO3H/repeat unit) x 100).…”

Section: Preparationmentioning

confidence: 99%

Composite Membranes Based on Sulfonated Polysulfone and Natural Zeolite for Proton Exchange Membrane Fuel Cells

Gustian¹

2017

RJC

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Proton conducting composite membranes have been prepared via binary mixtures comprising sulfonated polysulfone (SPSU) and natural zeolite (NZ). Polysulfone has been sulfonated in 1, 2-dichloroethane using the homogeneous method with trimethylsilyl chlorosulfonate as sulfonating agent. The ratio of monomer mol and trimethylsilyl chlorosulfonate was 1:1.5. Natural zeolite was activated in 1 M phosphoric acid and calcinated at 500˚C for 4 hours. The sulfonated polysulfone was added with zeolite at mass ratios of 1:0.5, 1:1 and 1:1.5. The manufacture of composite membranes has been done by evaporating dimethyl formamide of each mass ratios. The composite membranes were characterized by FT-IR, XRD analysis, and conductivity (σ). From the results of FT-IR spectra showed that interaction between sulfonated polysulfone and natural zeolite. From diffractogram showed that the diffractogram pattern after being blend with zeolite, the presence of crystal phase between 20-30˚ at 2θ. From the conductivity, the maximum proton conductivity was measured as 7.15 x 10 -4 S/cm at 40˚C for mass ratios of 1: 0.5 and results, as well as literature data the possible proton conductivity mechanism of the membrane, has been modeled.

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“…Technol., 6(2), 52 -58 Agust 2017 doi: 10.13170/aijst.6.2.8438 Others research also have reported that the local wave number 3100 cm -1 also generated N ---H stretch, indicating the occurrence of protonation on the imidazole ring of poly benzimidazole as a result of the interaction between the hydrogen atoms on the sulfonate group (Oktay et al, 2009). Previous N ---H interaction on the polymer molecule has been reported synthesis of polymer electrolyte membrane based on acid-base complex pair (Gustian et al, 2014 b andGustian et al, 2016).…”

Section: Materials and Preparationmentioning

confidence: 99%

Physico-chemical characteristics of Composites material Based on Sulfonated Cyclone Fibre Cellulose and Benzotriazole

Gustian¹,

Angasa²,

Ghufira³

2017

Aceh Int. J. Sci.Technol

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Composites material based on sulfonated cyclone fibre cellulose (SCFC) and benzotriazole (Btri) have been prepared. Cyclone fibre cellulose (CFC) was sulfonated with trimethylsilyl chlorosulfonate (TMSCS), with high degree of sulfonation (150%). The composites material, SCFC-Btri were prepared by doping of benzotriazole in various mole ratios (0.125, 0.25 and 0.5). FTIR spectrum has confirmed the ionic interaction between sulfonic acid from sulfonated cyclone fibre cellulose and benzotriazole units. Thermogravimetric analysis (TGA) showed that the composites material was thermally stable up to 150 °C. The results showed that methanol permeability of the composite material was lower than pristine Nafion112. Activation energy obtained for the materials are 0. 106 eV, 0.144 eV and 0.137 eV for SCFC-Btri mole ratios 0.125, 0.25 and 0.5 respectively, composites material was expected to be used as raw material in the fuel cell.

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Synthesis of Polymer Electrolyte Membrane based on Acid-Base Complex Pair and Its Characteristics

Cited by 7 publications

References 18 publications

Electrical properties, cyclic voltammetry, and anticancer activities of N‐(4‐(2‐hydrazinyl‐2‐oxoethoxy)phenyl) acetamide complexes

Electrical properties, cyclic voltammetry, and anticancer activities of N‐(4‐(2‐hydrazinyl‐2‐oxoethoxy)phenyl) acetamide complexes

Composite Membranes Based on Sulfonated Polysulfone and Natural Zeolite for Proton Exchange Membrane Fuel Cells

Physico-chemical characteristics of Composites material Based on Sulfonated Cyclone Fibre Cellulose and Benzotriazole

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