A novel hybrid material based on polytrimethylsilylpropyne and hypercrosslinked polystyrene for membrane gas separation and thermopervaporation

Golubev, G. S.; Borisov, Ilya L.; Литвинова, Е. Г.; Khotimsky, V. S.; Bakhtin, D. S.; Пастухов, А. В.; Davankov, V. A.; Volkov, V. V.

doi:10.1134/s0965544117060032

Cited by 18 publications

(17 citation statements)

References 32 publications

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“…One of the simplest and most effective ways to reduce membrane aging is to introduce a filler phase to produce so-called mixed-matrix membranes (MMM) [21][22][23]. Molecular sieves [24], structures based on metal-organic frameworks (MOF) [25][26][27][28], porous aromatic frameworks (PAF) [16,[29][30][31][32][33], hyper-crosslinked polystyrene (HCPS) [34][35][36][37][38], graphene, and graphene oxide (GO) [39] are used as such additives. MOF, such as zeolitic imidazolate frameworks (ZIF-7, -8), can increase the gas permeability, selectivity, and mechanical properties of membranes [26,27].…”

Section: Introductionmentioning

confidence: 99%

“…For example, the introduction of HCPS in PIM-1 led not only to an increase in permeability, but also to a significant reduction in polymer aging and an increase in selectivity over time [36]. Earlier, PTMSP membranes filled with HCPS were produced for the first time by our group for gas separation and pervaporation tasks [38]. It was shown that the introduction of a small amount of the modifying component (0.5-1.0 wt %) into PTMSP matrix allows for the increase of the permeability coefficients of the material by 1.5 times for light gases (N 2 , O 2 , CO 2 , CH 4 ).…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Microporous Polymeric Materials with Outstanding Permeability and Increased Gas Transport Stability: PTMSP Aging Prevention by Sorption of the Polymerization Catalyst on HCPS

et al. 2021

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The influence of hyper-crosslinked polystyrene (HCPS) MacronetTM MN200 on the gas transport properties and aging of the highly permeable glassy polymer poly(1-trimethylsilyl-1-propyne) (PTMSP) was studied and analyzed in detail. The gas transport characteristics of dense PTMSP membranes containing 0–10.0 wt % HCPS were studied. It was shown that the introduction of a small amount of HCPS into the PTMSP matrix led to a 50–60% increase of the permeability coefficients of the material for light gases (N2, O2, CO2) and slowed down the deterioration of polymer transport properties over time. The lowest reduction in gas permeability coefficients (50–57%) was found for PTMSP containing HCPS 5.0 wt % after annealing at 100 °C for 300 h. It was found that HCPS sorbed residues of tantalum-based polymerization catalyst from PTMSP. In order to investigate the influence of catalysts on transport and physical properties of PTMSP, we purified the latter from the polymerization catalyst by addition of 5 wt % HCPS into polymer/chloroform solution. It was shown that sorption on HCPS allowed for almost complete removal of tantalum compounds from PTMSP. The membrane made of PTMSP purified by HCPS demonstrated more stable transport characteristics compared to the membrane made of the initial polymer. HCPS has a complex effect on the aging process of PTMSP. The introduction of HCPS into the polymer matrix not only slowed down the physical aging of PTMSP, but also reduced chemical aging due to removal of active reagents.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hybrid Microporous Polymeric Materials with Outstanding Permeability and Increased Gas Transport Stability: PTMSP Aging Prevention by Sorption of the Polymerization Catalyst on HCPS

et al. 2021

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“…Furthermore, as mentioned by the authors of [ 22 ], PAF-like materials can be considered promising additives toward the reduction of physical aging in polymers of intrinsic microporosity, but the synthesis of such materials is quite complex and hinders commercial implementation. Therefore, investigations were conducted on the addition of hypercrosslinked polymers into PTMSP, i.e., poly(dichloroxylene) (p-DCX) [ 22 , 40 ] and hypercrosslinked polystyrene (HCL-PS) [ 41 ], which were first synthesized by Davankov et al [ 11 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 ]. From this perspective, a new type of IR-derived porous additive (IR-PAN) could be a promising alternative due to its energy- and time-efficient synthesis method.…”

Section: Introductionmentioning

confidence: 99%

Aging of Thin-Film Composite Membranes Based on Crosslinked PTMSP/PEI Loaded with Highly Porous Carbon Nanoparticles of Infrared Pyrolyzed Polyacrylonitrile

et al. 2020

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The mitigation of the physical aging of thin-film composite (TFC) poly[1-trimethylsilyl-1-propyne] (PTMSP) membranes was studied via the simultaneous application of a polymer-selective layer crosslinking and mixed-matrix membrane approach. For the first time, a recently developed highly porous activated carbon material (infrared (IR) pyrolyzed poly[acrylonitrile] (PAN) or IR-PAN-a) was investigated as an additive to a PTMSP-selective layer for the reduction of aging in TFC membranes. The total electric energy spent on the IR irradiation treatment of IR-PAN-a particles was twice lower than conventional heating. The flat-sheet porous microfiltration membrane MFFK-1 was used as a support, and the crosslinked PTMSP/PEI loaded with a porous filler was applied as a selective layer (0.8–1.8 µm thick) to the TFC membranes. The initial IR-PAN-a sample was additionally milled to obtain a milled IR-PAN-aM sample with a monomodal particle size distribution of 500–800 nm. It was shown that IR-PAN-a, as a filler material with a high surface area and pore volume (2450 m2/g and 1.06 cm3/g, respectively) and a well-developed sponge-like structure, leads to the increase of the N2, O2, and CO2 permeance of PTMSP-based hybrid membrane material and the decrease of the aging of PTMSP. The simultaneous effect of crosslinking and the addition of a highly porous filler essentially improved the aging behavior of PTMSP-based TFC membranes. The monomodal and narrow particle size distribution of highly porous activated IR-pyrolyzed PAN is a key factor for the production of TFC membranes with reduced aging. The highest stability was achieved by the addition of a milled IR-PAN-aM sample (10 wt%). TFC membrane permeance was 6300 GPU (30% of initial permeance) after 11,000 h of aging at ambient laboratory conditions.

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“…The high separation factors in the process of thermopervaporation removal of butanol from aqueous media is demonstrated by a highly permeable glass-like polymer, poly(1-trimethylsilyl-1-propyne) (PTMSP) [24,28,31,32]. During the TPV process of separation of binary aqueous solutions of butanol through a dense PTMSP membrane, the separation factor can reach a value of 120 [24], and butanol/water permselectivity, 5.9 [28].…”

Section: Introductionmentioning

confidence: 99%

High-Performance Reinforced PTMSP Membranes for Thermopervaporation Removal of Alcohols from Aqueous Media

Golubev

Borisov

Волков

et al. 2020

Membr. Membr. Technol.

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PTMSP membranes reinforced with a metal wire mesh have been fabricated and experimentally studied to increase the permeability and mechanical properties of poly(1-trimethylsilyl-1-propyne) (PTMSP) membranes in the course of thermopervaporation (TPV) removal of butanol from fermentation broths. The effect of the material wire of the mesh (stainless steel and bronze) and mesh size (30-40 μm) on the flux and separation factor in the course of thermopervaporation separation of aqueous solutions of butanol has been experimentally studied. It is shown in this work that the use of a metal wire mesh as a support instead of traditional commercial porous supports does not reduce the separation properties of a PTMSP membrane in the course of TPV removal of butanol from model fermentation mixtures. Separation modes that make it possible to obtain permeate fluxes above 1 kg m −2 h −1 have been found. It is shown in this work that the permeability coefficient of water through PTMSP membranes is 2.5 × 10 −5 mol m −2 h −1 kPa −1 and does not depend on the temperature of the feed and thickness of the membranes.

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A novel hybrid material based on polytrimethylsilylpropyne and hypercrosslinked polystyrene for membrane gas separation and thermopervaporation

Cited by 18 publications

References 32 publications

Hybrid Microporous Polymeric Materials with Outstanding Permeability and Increased Gas Transport Stability: PTMSP Aging Prevention by Sorption of the Polymerization Catalyst on HCPS

Hybrid Microporous Polymeric Materials with Outstanding Permeability and Increased Gas Transport Stability: PTMSP Aging Prevention by Sorption of the Polymerization Catalyst on HCPS

Aging of Thin-Film Composite Membranes Based on Crosslinked PTMSP/PEI Loaded with Highly Porous Carbon Nanoparticles of Infrared Pyrolyzed Polyacrylonitrile

High-Performance Reinforced PTMSP Membranes for Thermopervaporation Removal of Alcohols from Aqueous Media

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