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Tomczak W, Gryta M, Kowalczyk K. The influence of storage time on the performance of polypropylene membranes applied for membrane distillation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Pochivalov KV, Basko AV, Lebedeva TN, Ilyasova AN, Shandryuk GA, Snegirev VV, Artemov VV, Ezhov AA, Kudryavtsev YV. A New Look at the Structure and Thermal Behavior of Polyvinylidene Fluoride-Camphor Mixtures. Polymers (Basel) 2022; 14:polym14235214. [PMID: 36501608 PMCID: PMC9735715 DOI: 10.3390/polym14235214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
An experimental quasi-equilibrium phase diagram of the polyvinylidene fluoride (PVDF)-camphor mixture is constructed using an original optical method. For the first time, it contains a boundary curve that describes the dependence of camphor solubility in the amorphous regions of PVDF on temperature. It is argued that this diagram cannot be considered a full analogue of the eutectic phase diagrams of two low-molar-mass crystalline substances. The phase diagram is used to interpret the polarized light hot-stage microscopy data on cooling the above mixtures from a homogeneous state to room temperature and scanning electron microscopy data on the morphology of capillary-porous bodies formed upon camphor removal. Based on our calorimetry and X-ray studies, we put in doubt the possibility of incongruent crystalline complex formation between PVDF and camphor previously suggested by Dasgupta et al. (Macromolecules 2005, 38, 5602-5608). We also describe and discuss the high-temperature crystalline structure of racemic camphor, which is not available in the modern literature.
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Affiliation(s)
- Konstantin V. Pochivalov
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Akademicheskaya ul. 1, Ivanovo 153045, Russia
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, St. Petersburg 199004, Russia
| | - Andrey V. Basko
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Akademicheskaya ul. 1, Ivanovo 153045, Russia
| | - Tatyana N. Lebedeva
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Akademicheskaya ul. 1, Ivanovo 153045, Russia
| | - Anna N. Ilyasova
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Akademicheskaya ul. 1, Ivanovo 153045, Russia
| | - Georgiy A. Shandryuk
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow 119991, Russia
| | - Vyacheslav V. Snegirev
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1–2, Moscow 119991, Russia
| | - Vladimir V. Artemov
- Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics”, Russian Academy of Sciences, Leninskii pr. 59, Moscow 119333, Russia
| | - Alexander A. Ezhov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow 119991, Russia
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1–2, Moscow 119991, Russia
- Shubnikov Institute of Crystallography, Federal Scientific Research Center “Crystallography and Photonics”, Russian Academy of Sciences, Leninskii pr. 59, Moscow 119333, Russia
| | - Yaroslav V. Kudryavtsev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow 119991, Russia
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow 119071, Russia
- Correspondence:
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Basko A, Pochivalov K. Current State-of-the-Art in Membrane Formation from Ultra-High Molecular Weight Polyethylene. MEMBRANES 2022; 12:membranes12111137. [PMID: 36422129 PMCID: PMC9696610 DOI: 10.3390/membranes12111137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 05/12/2023]
Abstract
One of the materials that attracts attention as a potential material for membrane formation is ultrahigh molecular weight polyethylene (UHMWPE). One potential material for membrane formation is ultrahigh molecular weight polyethylene (UHMWPE). The present review summarizes the results of studies carried out over the last 30 years in the field of preparation, modification and structure and property control of membranes made from ultrahigh molecular weight polyethylene. The review also presents a classification of the methods of membrane formation from this polymer and analyzes the conventional (based on the analysis of incomplete phase diagrams) and alternative (based on the analysis of phase diagrams supplemented by a boundary line reflecting the polymer swelling degree dependence on temperature) physicochemical concepts of the thermally induced phase separation (TIPS) method used to prepare UHMWPE membranes. It also considers the main ways to control the structure and properties of UHMWPE membranes obtained by TIPS and the original variations of this method. This review discusses the current challenges in UHMWPE membrane formation, such as the preparation of a homogeneous solution and membrane shrinkage. Finally, the article speculates about the modification and application of UHMWPE membranes and further development prospects. Thus, this paper summarizes the achievements in all aspects of UHMWPE membrane studies.
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Pochivalov KV, Basko AV. Formation of porous microspheres from semicrystalline polymer solutions: diffusion-controlled and local phase separation. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2056051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Pochivalov KV, Basko AV, Lebedeva TN, Ilyasova AN, Guseinov SS, Kudryavtsev YV. Thermodynamically-informed approach to the synthesis of 3D printing powders from the mixtures of polyamide 12 with benzyl alcohol. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Yushkin A, Balynin A, Efimov M, Pochivalov K, Petrova I, Volkov A. Fabrication of Polyacrylonitrile UF Membranes by VIPS Method with Acetone as Co-Solvent. MEMBRANES 2022; 12:membranes12050523. [PMID: 35629849 PMCID: PMC9146048 DOI: 10.3390/membranes12050523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/09/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
Abstract
For the first time, a systematic study was carried out of the replacement of the low-volatility solvents N-methyl-2-pyrrolidone (NMP) or dimethylsulfoxide (DMSO) with the high-volatility solvent acetone in the casting solution of polyacrylonitrile (PAN). The effect of acetone’s presence in the casting solution on the performance of ultrafiltration membranes fabricated via vapor-induced phase separation (VIPS) was investigated. It was possible to replace 40% of NMP and 50% of DMSO with acetone, which resulted in the reduction of the casting solution viscosity from 70.6 down to 41.3 Pa∙s (20% PAN, NMP), and from 68.3 down to 20.6 Pa∙s (20% PAN, DMSO). It was found that 20 min of exposure to water vapor (relative humidity—85%) was sufficient to govern the phase separation, which was mainly induced by the water vapor. Regardless of the casting solution composition (15 or 20% PAN; DMSO or NMP), all membranes formed via VIPS possessed a sponge-like porous structure. The addition of acetone to the casting solution allowed the reduction of the transport pore size from 35–48 down to 8.5–25.6, depending on the casting solution composition. By varying the acetone content at constant polymer concentration, it was possible to decrease the molecular weight cut-off (MWCO) from 69 to 10 kg/mol. Membranes prepared from 20% PAN solution in an acetone/DMSO mixture had the lowest MWCO of 10 kg/mol with a water permeance of 5.1 L/(m2·h·bar).
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Affiliation(s)
- Alexey Yushkin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.B.); (M.E.); (K.P.); (I.P.); (A.V.)
- Correspondence: ; Tel.: +7-(495)-647-59-27 (ext. 2-02)
| | - Alexey Balynin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.B.); (M.E.); (K.P.); (I.P.); (A.V.)
| | - Mikhail Efimov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.B.); (M.E.); (K.P.); (I.P.); (A.V.)
| | - Konstantin Pochivalov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.B.); (M.E.); (K.P.); (I.P.); (A.V.)
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Inna Petrova
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.B.); (M.E.); (K.P.); (I.P.); (A.V.)
| | - Alexey Volkov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.B.); (M.E.); (K.P.); (I.P.); (A.V.)
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Preparation of fiber core support
UHMWPE
/
SiO
2
composite hollow fiber membrane toward enhancing structure stability and antifouling. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25860] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Basko AV, Lebedeva TN, Yurov MY, Pochivalov KV. The Effect of Physical State of Thymol on the Duration of Its Release from the Mixture with a Semicrystalline Polymer: Thermodynamic Aspects and Kinetics of the Process. POLYMER SCIENCE SERIES A 2022. [DOI: 10.1134/s0965545x22010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhao X, Wang X, Lou T. Simultaneous adsorption for cationic and anionic dyes using chitosan/electrospun sodium alginate nanofiber composite sponges. Carbohydr Polym 2022; 276:118728. [PMID: 34823764 DOI: 10.1016/j.carbpol.2021.118728] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 09/08/2021] [Accepted: 10/01/2021] [Indexed: 12/11/2022]
Abstract
The coexistence of anionic and cationic dyes in dye wastewater has highlighted a great necessity to develop amphoteric adsorbents for their simultaneous removal. Herein, an amphoteric composite sponge was successfully fabricated by combining chitosan with electrospun sodium alginate nanofiber using lyophilization in acetic acid/water/dioxane mixed solvents, which owned the abundant functional groups and superior microstructure of interconnected pores and nanoscale fibers, beneficial for the adsorption capacity improvement. The optimum adsorption capacities for Acid Blue-113 and Rhodamine B were 926.2 ± 25.7 mg/g and 695.4 ± 17.0 mg/g, respectively, much higher than that of the controlled sample prepared with chitosan and non-spinning sodium alginate in traditional acetic acid/water solvents. Meanwhile, the sponge provided with the superior adsorption performance under various pH environment and cyclic adsorption. Importantly, it had considerable simultaneous adsorption capacity for binary system containing anionic and cationic dyes. Overall, the chitosan/electrospun sodium alginate nanofiber composite sponge shows potential for complex wastewater treatment.
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Affiliation(s)
- Xiaolin Zhao
- Department of Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Xuejun Wang
- Department of Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Tao Lou
- Department of Chemical Engineering, Qingdao University, Qingdao 266071, China.
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Löffler RJG, Hanczyc MM, Gorecki J. A camphene-camphor-polymer composite material for the production of superhydrophobic absorbent microporous foams. Sci Rep 2022; 12:243. [PMID: 34997122 PMCID: PMC8741767 DOI: 10.1038/s41598-021-04240-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/17/2021] [Indexed: 11/10/2022] Open
Abstract
In a recently published paper (doi.org/10.3390/molecules26113116) on self-propelled motion of objects on the water surface, we described a novel surface-active plastic material obtained by dissolution of camphor and polypropylene in camphene at 250 \documentclass[12pt]{minimal}
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\begin{document}$$^\circ$$\end{document}∘C. The material has wax-like mechanical properties, can be easily formed to any moldable shape, and allows for longer and more stable self-propelled motion if compared with pure camphor or pure camphene or of a camphene-camphor wax. Here we use scanning electron microscopy to visualize and characterize the microporous structure of the solid polypropylene foam formed in the plastic for different polypropylene contents. The topology of foams remaining in the material after camphor and camphene molecules have been removed through evaporation or dissolution is similar to polypropylene foams obtained using thermally-induced phase separation. We show that the foams have a superhydrophobic surface but strongly absorb non-polar liquids, and suggest an array of potential scientific and industrial applications.
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Affiliation(s)
- Richard J G Löffler
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Mazowieckie, Poland.,Laboratory for Artificial Biology, Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Polo Scientifico e Tecnologico Fabio Ferrari, Polo B, Via Sommarive 9, Povo, 38123, Trentino Alto-Adige, Italy
| | - Martin M Hanczyc
- Laboratory for Artificial Biology, Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Polo Scientifico e Tecnologico Fabio Ferrari, Polo B, Via Sommarive 9, Povo, 38123, Trentino Alto-Adige, Italy.,Farris Engineering Center, Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, 87106, USA
| | - Jerzy Gorecki
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Mazowieckie, Poland.
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Pochivalov KV, Basko AV, Lebedeva TN, Yurov MY, Yushkin AA, Volkov AV. A Facile Method for Selection of Solvents for Fabrication of Polypropylene Membranes by Thermally Induced Phase Separation. J MACROMOL SCI B 2021. [DOI: 10.1080/00222348.2021.1999046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Andrey V. Basko
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
| | - Tatyana N. Lebedeva
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
| | - Mikhail Yu. Yurov
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
| | - Alexey A. Yushkin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia
| | - Alexey V. Volkov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia
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12
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Pochivalov KV, Shilov AN, Lebedeva TN, Ilyasova AN, Golovanov RY, Basko AV, Kudryavtsev YV. Development of vibration damping materials based on butyl rubber: A study of the phase equilibrium, rheological, and dynamic properties of compositions. J Appl Polym Sci 2020. [DOI: 10.1002/app.50196] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Alexander N. Shilov
- Krestov Institute of Solution Chemistry Russian Academy of Sciences Ivanovo Russia
| | - Tatyana N. Lebedeva
- Krestov Institute of Solution Chemistry Russian Academy of Sciences Ivanovo Russia
| | - Anna N. Ilyasova
- Krestov Institute of Solution Chemistry Russian Academy of Sciences Ivanovo Russia
| | - Roman Yu. Golovanov
- Krestov Institute of Solution Chemistry Russian Academy of Sciences Ivanovo Russia
| | - Andrey V. Basko
- Krestov Institute of Solution Chemistry Russian Academy of Sciences Ivanovo Russia
| | - Yaroslav V. Kudryavtsev
- Topchiev Institute of Petrochemical Synthesis Russian Academy of Sciences Moscow Russia
- Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences Moscow Russia
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