Membranes and Membrane Technologies最新文献_第8页

Poly(1-trimethylsilyl-1-propyne) of cis-Enrich Configuration as a Membrane Material for the Separation of Butane/Methane Mixtures as Natural Gas Components 顺式富集聚(1-三甲基硅基-1-丙炔)作为分离天然气组分丁烷/甲烷混合物的膜材料

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S251775162303006X

V. P. Makrushin, A. A. Kossov, I. S. Levin, D. A. Bezgin, D. A. Syrtsova, S. M. Matson

{"title":"Poly(1-trimethylsilyl-1-propyne) of cis-Enrich Configuration as a Membrane Material for the Separation of Butane/Methane Mixtures as Natural Gas Components","authors":"V. P. Makrushin, A. A. Kossov, I. S. Levin, D. A. Bezgin, D. A. Syrtsova, S. M. Matson","doi":"10.1134/S251775162303006X","DOIUrl":"10.1134/S251775162303006X","url":null,"abstract":"The permeability of individual lower hydrocarbons and in a С1/С4 mixture is studied for the first time for films based on PTMSP of the new cis-enrich configurational composition (the content of cis-units in the samples is 80 and 90%). The methane permeability of freshly prepared cis-regular PTMSP films (90% cis-units) and exposed to air for a month is higher than the corresponding values of PTMSP films containing 80% cis-units. The X-ray diffraction data indicate a looser packing of cis-regular PTMSP. The introduction of antioxidant Irganox 1076 into the PTMSP films leads to a decrease in the initial level of methane flux. At the same time, the permeability of the films with the added Irganox decreases much more slowly over time (for a month) compared with the films without the added antioxidant. The permeability of individual lower hydrocarbons through PTMSP films without and with the added Irganox 1076 increases in the sequence С1 < C2 < C3 < C4. The value of the separation factor in the n-butane/methane mixture attains 33, which is almost 7 times higher than selectivity for individual components. A high level of n-butane permeability for cis-enrich PTMSP is maintained at least for a month of film storage in air.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 3","pages":"209 - 217"},"PeriodicalIF":1.6,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4218264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Properties of Polysulfones for Fabricating Porous Hollow-Fiber Membranes 多孔中空纤维膜用聚砜的合成及性能研究

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S2517751623030022

I. L. Borisov, D. N. Matveev, T. S. Anokhina, K. T. Shakhmurzova, A. A. Zhansitov, A. L. Slonov, Zh. I. Kurdanova, S. Yu. Khashirova, V. V. Volkov

{"title":"Synthesis and Properties of Polysulfones for Fabricating Porous Hollow-Fiber Membranes","authors":"I. L. Borisov, D. N. Matveev, T. S. Anokhina, K. T. Shakhmurzova, A. A. Zhansitov, A. L. Slonov, Zh. I. Kurdanova, S. Yu. Khashirova, V. V. Volkov","doi":"10.1134/S2517751623030022","DOIUrl":"10.1134/S2517751623030022","url":null,"abstract":"Polysulfones are synthesized in aprotic dipolar solvents, such as dimethylacetamide, N-methyl-2-pyrrolidone, and dimethyl sulfoxide, in a wide range of molecular weights from 42 000 to 184 000 g/mol for hollow-fiber membranes spinning for the first time. Dependence of the thermal and mechanical properties of polysulfones on molecular weight characteristics is investigated. A comparison of the mechanical properties of the synthesized PSF and commercial PSF Ultrason S 6010 (BASF, Germany) and PSF-150 (JSC Institute of Plastics, Russia) shows that the synthesized polymers are not inferior to their commercial analogs and some samples even surpass them in terms of the elastic modulus and strength. According to the dynamic viscosity of spinning solutions, promising PSF samples are chosen to form porous hollow-fiber supports. It is demonstrated that the hollow-fiber supports based on PSF with a molecular weight of 110 000 g/mol have a high nitrogen permeability of 47.5 m3/(m2 h bar). These supports show promise for casting composite membranes with a thin selective layer.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 3","pages":"218 - 225"},"PeriodicalIF":1.6,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4219091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Heterogeneous Ion-Exchange Membranes Composition on Their Structure and Transport Properties 非均相离子交换膜组成对其结构和传输性能的影响

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S2517751623030083

V. I. Vasilieva, E. E. Meshcheryakova, I. V. Falina, N. A. Kononenko, M. A. Brovkina, E. M. Akberova

引用次数: 0

Study of the Specific Adsorption of Calcium Ions on the Surface of Heterogeneous and Homogeneous Cation-Exchange Membranes to Increase Their Selectivity to Singly Charged Ions 钙离子在非均相和均相阳离子交换膜表面的特异性吸附研究，以提高其对单电荷离子的选择性

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S2517751623030046

V. V. Gil, V. D. Ruleva, M. V. Porozhnyy, M. V. Sharafan

{"title":"Study of the Specific Adsorption of Calcium Ions on the Surface of Heterogeneous and Homogeneous Cation-Exchange Membranes to Increase Their Selectivity to Singly Charged Ions","authors":"V. V. Gil, V. D. Ruleva, M. V. Porozhnyy, M. V. Sharafan","doi":"10.1134/S2517751623030046","DOIUrl":"10.1134/S2517751623030046","url":null,"abstract":"Ion-exchange membranes with high specific selectivity to singly charged ions are in demand in various industries. One of the ways to increase the specific selectivity can be the formation on the membrane surface of a thin layer with a charge opposite to the charge of membrane fixed groups. The possibility of forming such a layer due to the specific interaction of calcium ions with the sulfonate groups of the membrane during treatment with a high-intensity electric current in a CaCl2 solution has been investigated. The ability of heterogeneous (MK-40, Ralex CMH) and homogeneous (CMX, CJMC-5) sulfonated cation-exchange membranes to specifically adsorb calcium ions on their surface has been studied. It has been shown that the CMX membrane exhibits this ability to the greatest extent, which is due to a higher density of (-{text{SO}}_{3}^{ - }) groups on its surface compared to other studied membranes. It has been found that formation of a thin positively charged layer on the surface of the CMX membrane increases the membrane permselectivity coefficient ({{P}_{{{{{text{N}}{{{text{a}}}^{{text{ + }}}}} mathord{left/ {vphantom {{{text{N}}{{{text{a}}}^{{text{ + }}}}} {{text{C}}{{{text{a}}}^{{{text{2 + }}}}}}}} right. kern-0em} {{text{C}}{{{text{a}}}^{{{text{2 + }}}}}}}}}}) by 69%. Moreover, the presence of such a layer does not lead to an increase in undesirable water splitting, which occurs when widely used polyelectrolytes with amino groups are applied as modifiers.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 3","pages":"156 - 167"},"PeriodicalIF":1.6,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4550710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical Behavior of Polyaniline-Modified Cation-Exchange Heterogeneous Membranes in Solutions Containing Mono- and Bivalent Cations 聚苯胺修饰阳离子交换非均相膜在含一价和二价阳离子溶液中的电化学行为

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S2517751623030034

M. A. Brovkina, N. A. Kutenko, N. V. Loza

{"title":"Electrochemical Behavior of Polyaniline-Modified Cation-Exchange Heterogeneous Membranes in Solutions Containing Mono- and Bivalent Cations","authors":"M. A. Brovkina, N. A. Kutenko, N. V. Loza","doi":"10.1134/S2517751623030034","DOIUrl":"10.1134/S2517751623030034","url":null,"abstract":"A series of composite ion-exchange membranes based on an heterogeneous cation-exchange MK‑40 membrane and polyaniline is obtained under the conditions of electrodiffusion of a monomer and an oxidizing agent. The process of polyaniline synthesis on the membrane surface is accompanied by recording of chronopotentiograms and pH of the solution leaving the desalination compartment. The initial cation-exchange MK-40 membrane and obtained composites based on it are studied by voltammetry and chronopotentiometry in solutions of NaCl, CaCl2, and MgCl2 in the same flow-type electrodialysis cell, in which the composites are obtained. To calculate the transport numbers of counterions in the membranes in solutions of CaCl2 and MgCl2 by chronopotentiometry, the apparent fraction of the conductive membrane surface in a solution of NaCl is calculated based on the experimental data on the potentiometric transport numbers of counterions in the membrane. The conditions for the synthesis of polyaniline on the surface of an heterogeneous MK-40 membrane which result in the preparation of samples with selectivity to singly charged ions are found out.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 3","pages":"178 - 192"},"PeriodicalIF":1.6,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4550717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Transport Properties and Structure of Anisotropic Composites Based on Cation-Exchange Membranes and Polyaniline 基于阳离子交换膜和聚苯胺的各向异性复合材料的输运性质和结构

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S2517751623030058

N. V. Loza, N. A. Kutenko, N. A. Kononenko, Yu. M. Volfkovich, V. E. Sosenkin

{"title":"Transport Properties and Structure of Anisotropic Composites Based on Cation-Exchange Membranes and Polyaniline","authors":"N. V. Loza, N. A. Kutenko, N. A. Kononenko, Yu. M. Volfkovich, V. E. Sosenkin","doi":"10.1134/S2517751623030058","DOIUrl":"10.1134/S2517751623030058","url":null,"abstract":"Comprehensive characterization of basic MK-40 and Ralex CMH heterogeneous cation-exchange membranes and composite membranes with polyaniline based on them is performed including the determination of specific electrical conductivity and diffusion permeability; measurement of current–voltage curves in solutions of sodium, calcium, and magnesium chlorides and hydrochloric acid and curves of distribution of water with respect to the bond energies and effective pore radii as well as assessment of the transport structural parameters of a microheterogeneous model. The time of synthesis of polyaniline on the surface of cation-exchange membranes for obtaining samples with an anisotropic structure and asymmetric electric transport properties is determined by successive diffusion of a solution of an oxidizing agent and a monomer through the membrane into water. It is shown based on the analysis of the electric transport properties, structural characteristics, and model transport structural parameters of the membranes in solutions of singly and doubly charged ions that the obtained materials are promising for use in the processes of electrodialysis desalination of multicomponent solutions.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 3","pages":"193 - 208"},"PeriodicalIF":1.6,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4218882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of Introduction of Phenolic Antioxidants on the Thermo-Oxidative Stability and Gas Permeability of Poly(4-methyl-2-pentyne) 酚类抗氧化剂的引入对聚4-甲基-2-戊烷热氧化稳定性和透气性的影响

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S2517751623030071

V. P. Makrushin, V. K. Chernikov, I. S. Levin, A. A. Kossov, S. M. Matson

{"title":"Effect of Introduction of Phenolic Antioxidants on the Thermo-Oxidative Stability and Gas Permeability of Poly(4-methyl-2-pentyne)","authors":"V. P. Makrushin, V. K. Chernikov, I. S. Levin, A. A. Kossov, S. M. Matson","doi":"10.1134/S2517751623030071","DOIUrl":"10.1134/S2517751623030071","url":null,"abstract":"The thermo-oxidative stability and gas transport properties of poly(4-methyl-2-pentyne) (PMP) samples of the mixed configurational composition (50% cis-units) in the presence of phenolic antioxidants Irganox 1076, Irganox 1010, Vulkanox BHT, and Rianox 1520 differing in the nature and structure of substituents on the benzene ring is studied. The annealing of PMP films at 140°С demonstrates that the films with the added Irganox 1076 and Irganox 1010 maintain the strength and stability of gas transport properties for at least 150 h of total heating after moderate decrease in permeability (∼30%) for the first 48 h of heating. PMP films with Vulkanox BHT and Rianox 1520 upon 48 h of heating at 140°С show an increase in gas permeability coefficients, indicating the onset of polymer degradation, and after 100 h of heating they are destroyed. The wide-angle X-ray diffraction of the films with the most effective stabilizers Irganox 1076 and Irganox 1010 reveals a decrease in interchain distances upon annealing which provides evidence for an increase in the packing density of macromolecules as a result of thermally activated relaxation.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 3","pages":"148 - 155"},"PeriodicalIF":1.6,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4218158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modification of Nafion Membranes by Polycation in the Presence of Lower Alyphatic Alcohols and Salt 在低烃醇和盐的存在下多阳离子修饰钠离子膜

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-06-05 DOI: 10.1134/S2517751623030095

Yu. A. Zakharova, V. G. Sergeyev

引用次数: 0

Synthesis and Properties of Poly(4-Methyl-2-Pentyne) Containing Quaternary Ammonium Salts with Methyl and Ethyl Substituents 含甲基和乙基取代基的聚(4-甲基-2-戊炔)季铵盐的合成与性能

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-04-19 DOI: 10.1134/S2517751623020051

V. G. Polevaya, A. A. Kossov, S. M. Matson

{"title":"Synthesis and Properties of Poly(4-Methyl-2-Pentyne) Containing Quaternary Ammonium Salts with Methyl and Ethyl Substituents","authors":"V. G. Polevaya, A. A. Kossov, S. M. Matson","doi":"10.1134/S2517751623020051","DOIUrl":"10.1134/S2517751623020051","url":null,"abstract":"In this work, poly(4-methyl-2-pentyne) (PMP) with quaternary ammonium salts has been functionalized in order to increase CO2 selectivity. Functional groups have been introduced by a two-stage method: (i) bromination of the initial polymer and (ii) addition of tertiary alkylamines, namely trimethylamine (TMA) and trimethylamine (TEA). It has been established that the optimal amount of introduced functional groups, while maintaining the mechanical properties of the polymer, is up to 5 mol %. The results of organoelemental analysis and IR spectroscopy confirm the PMP functionalization. X-ray diffraction patterns of the samples indicate an increase in the interchain distance in the series initial PMP–brominated PMP–functionalized PMP. TGA data confirm high thermal and thermal-oxidative stability. The coefficients of permeability, solubility, and diffusion of PMP samples containing TMA and TEA salts have been determined for individual gases. An increased ideal selectivity for the separation of gas pairs CO2/N2 by 2–3 times and CO2/CH4 by 1.5–2 times has been achieved while maintaining the permeability at a high level.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 2","pages":"128 - 137"},"PeriodicalIF":1.6,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S2517751623020051.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5037050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Features of the Process of Galvanic Deposition of Metals into the Pores of Ion Track Membranes 离子轨道膜孔中金属电沉积过程的特点

IF 1.6

Membranes and Membrane Technologies Pub Date : 2023-04-19 DOI: 10.1134/S2517751623020075

D. L. Zagorskiy, I. M. Doludenko, D. R. Khairetdinova

{"title":"Features of the Process of Galvanic Deposition of Metals into the Pores of Ion Track Membranes","authors":"D. L. Zagorskiy, I. M. Doludenko, D. R. Khairetdinova","doi":"10.1134/S2517751623020075","DOIUrl":"10.1134/S2517751623020075","url":null,"abstract":"The paper considers the specific features of obtaining metal nanowires by matrix synthesis based on track membranes. The first part of the work considers the main ideas of the method and reviews the published sources devoted to producing nanowires of various types—single-component (from one metal) and multicomponent (from two or several metals). Variants of obtaining homogeneous structures (so-called alloyed nanowires) and heterogeneous structures (so-called layered nanowires) are considered for the latter case. A series of specific features of the electrodeposition method in the case of carrying out the process in a limited volume of membrane pores is considered. The second part of the work considers the experimental results obtained by the authors upon studying the electrodeposition of nanowires made of an iron–nickel alloy. The aim is to find a relationship between the conditions of the synthesis of nanowires and their structure and elemental composition. The features of the electrodeposition of nanowires are investigated and their topography is studied by electron microscopy (with elemental analysis); X-ray method is applied for studying the structure. So-called abnormal electrodeposition of iron is detected. The dependence of the integral elemental composition of the obtained nanowires on the pore diameter and growth voltage is discussed. Data on the nature of distribution of elements along the length of the nanowires are obtained; it is shown that the nonuniformity of the composition is determined by the conditions of production (in particular, different diffusion mobilities of ions in narrow pore channels) as well as depends on the voltage and diameter of the pore channels. Based on the X-ray diffraction data, the type of the lattice (FCC) is determined, and the nature of the change in the lattice parameter is shown which is presumably associated with the difference in the ionic radii of metals.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"5 2","pages":"115 - 127"},"PeriodicalIF":1.6,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4739972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1