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Article
Potentiometric Sensors Based on MF-4SC Membranes and Carbon Nanotubes for the Determination of Nicotinic Acid in Aqueous Solutions and Pharmaceuticals
Perfluorosulfonic acid membranes MF-4SC with a uniform and gradient distribution of multi-walled carbon nanotubes (CNTs) along the length of the samples have been synthesized. The effect of the presence and co...
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Article
Dependence of the Transport Properties of Perfluorinated Sulfonated Cation-Exchange Membranes on Ion-Exchange Capacity
The transport properties of ion-exchange membranes depend on many factors, primarily, on ion-exchange capacity and chemical composition. Therefore, the correlation of transport properties with a single particu...
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Article
Effect of Modification with Cesium Acid Salt of Phosphotungstic Acid on the Properties of Membranes Based on Grafted Sulfonated Polystyrene
The possibility of modification of ion-exchange membranes with high pore and channel volumes and the effect of do** on the membrane properties have been studied. Hybrid membranes based on sulfonated polystyr...
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Article
Hybrid Materials Based on MF-4SC Membranes and Carbon Nanotubes: Transport Properties and Characteristics of DP-sensors in Hydrophobic Amino Acid Solutions
Perfluorinated sulfonated cation-exchange membranes MF-4SC containing 0.5–3.0% of carbon nanotubes (CNTs) have been synthesized. A correlation between the water uptake and transport properties of the membranes...
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Article
Ion Transport in Hybrid Membranes Based on Perfluorosulfonic Polymers
A comparative study of the transport characteristics of Nafion and Aquivion perfluorinated membranes and hybrid membranes on their basis has been carried out. It has been shown that the modification of membran...
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Article
Hybrid Membranes Synthesized from a Nafion Powder and Carbon Nanotubes by Hot Pressing
Unmodified and hybrid membranes based on Nafion and carbon nanotubes have been synthesized by hot pressing from a mixture of polymer and dopant powders. The water uptake, ionic conductivity under different con...
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Article
MF-4SC hybrid membranes doped with carbon nanotubes functionalized with proton-acceptor groups
Carbon nanotubes functionalized with proton acceptor groups are obtained for their use as dopants for hybrid materials based on an MF-4SC perfluorinated sulfonated membrane. Ion conductivity at high and low re...
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Article
DP-sensors based on MF-4SC membrane and silica with hydrophobic surface for determination of phenylalanine, valine, and methionine cations
The influence of modification of MF-4SC membranes with silica (or surface-hydrophobized silica) nanoparticles on their ionic conductivity and diffusion permeability as well as the response stability and sensit...
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Article
Synthesis and study of hybrid materials based on Nafion membranes, hydrated silica, phosphotungstic acid, and its acid salts
The results of research of the properties of hybrid materials based on Nafion membranes, silica, phosphotungstic acid, and its acid salts (potassium, rubidium, and cesium) prepared by the in situ method has be...
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Article
Asymmetry of ion transport in hybrid MF-4SC membranes with a gradient distribution of hydrated zirconia
Results of studies of the properties of hybrid MF-4SC membranes with a gradient distribution of hydrated zirconia nanoparticles through the thickness prepared by layer-by-layer casting from a polymer solution ...
