The PVDF support membrane with a pore size of 0.1 μm and an average thickness of 100 μm was purchased from Hangzhou Anow Microfiltration Co., Ltd. (Hangzhou, China). Pebax-2533 containing 80 wt % of poly(tetramethylene oxide) (PTMEO) and 20 wt % of nylon 12 (PA12) was provided by Arkema (Paris, France), and its structure is shown in Chart 1 a. The N2 (99.999%) and O2 (99.999%) were supplied by Beijing Beiwen Gas Factory (Beijing, China). Hydrochloric acid, anhydrous methanol, and ethanol were purchased from Beijing Chemical Works (Beijing, China). o-nitrotoluene, p-anisaldehyde, propionic acid, and acetic acid were supplied by Aladdin (Shanghai, China). Pyrrole and anhydrous cobalt dichloride (CoCl2) was purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Dimethylformamide (DMF) was provided by Xilong Scientific Co., Ltd. (Guangdong, China). Deionized water was used throughout the study.
Pebax 2533
Manufactured by Arkema
Sourced in France
Pebax® 2533 is a thermoplastic elastomer manufactured by Arkema. It is a copolymer composed of polyether and polyamide segments. Pebax® 2533 is designed to provide flexibility, durability, and resistance to chemicals and environmental factors.
Automatically generated - may contain errors
Lab products found in correlation
Hydrochloric acid (hcl), by Beijing Chemical Works (1 mentions)
Dimethylformamide dmf, by Xilong (1 mentions)
Ethanol, by Beijing Chemical Works (1 mentions)
Anhydrous methanol, by Beijing Chemical Works (1 mentions)
Ferric chloride hexahydrate, by Merck Group (1 mentions)
Graphene oxide powder, by Merck Group (1 mentions)
N n dimethylformamide (dmf), by Merck Group (1 mentions)
Ethyl acetate, by Merck Group (1 mentions)
N butanol, by Merck Group (1 mentions)
Tetraethyl orthosilicate teos, by Merck Group (1 mentions)
Ultrason e6020p, by Arkema (1 mentions)
Rhodamine b, by Merck Group (1 mentions)
6 protocols using pebax 2533
1
Pebax/PVDF Composite Membrane Synthesis
2
Synthesis and Characterization of Metal-Organic Framework Composite Membranes
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Ferric chloride hexahydrate (FeCl3·6H2O), terephthalic acid (H2BDC), N,N-dimethylformamide (DMF), and Graphene oxide powder (GO), 15–20 sheets, 4–10% edge-oxidized were purchased from Sigma Aldrich (Poznań, Poland). Methanol (99.8%) and ethanol (99.8%) were purchased from Alchem Grupa Sp. z o.o. (Toruń, Poland). Pebax® 2533 was kindly provided by Arkema (Colombes, France). Hydrophobic PVDF (polyvinylidene difluoride) membrane (Durapore Membrane Filter, 0.22 μm) were purchased from Merck (Darmstadt, Germany). CO2 (99.999%) and N2 (99.999%) were purchased from Air Products Sp. z o.o. (Siewierz, Poland).
3
Pebax and PES Membranes for Pervaporation
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The commercial Pebax® 2533 (80 wt% poly(tetramethylene oxide) and 20 wt% polyamide) and PES (molecular weight of 58 000 g mol−1, Ultrason E6020P) provided from Arkema Inc. (Paris, France) and BASF (Ludwigshafen, Germany) were used as the membrane materials, respectively. N,N-Dimethyl formamide (DMF) and n-butanol purchased from Merck Co. Ltd. (Darmstadt, Germany) were used as solvents for PES and PEBA, respectively. Tetrapropylammonium hydroxide (TPAOH), sodium hydroxide (NAOH), aluminum isopropoxide supplied from Merck Co. Ltd. and tetraethyl orthosilicate (TEOS) supplied from Sigma Inc. (Sigma Aldrich, MO, USA) were used for synthesis of the ZSM-5 zeolite. Ethyl acetate was purchased from Merck Co. Ltd. and de-ionized water was mixed as the pervaporation feed.
4
Hydrogel Fabrication and Characterization
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PEBAX 2533 pellets were purchased from Arkema. The PEBAX film was prepared by hot pressing the pellets at 180°C for 5 min. The hydrogel precursor solution was prepared by mixing water, AAc, MBAA, and Irgacure 2959 with an MBAA-AAc molar ratio of C = 10−4, an Irgacure 2959-AAc molar ratio of 4 × 10−5, and a water-AAc molar ratio W = 4. PEBAX film was swollen in the hydrogel precursor to equilibrium and was kept in darkness. The swollen sample was taken out from the precursor, wiped with tissues, held between two glass slides, fixed by binder clips, and put into a polyethylene zip bag. The bag was pressed to remove air, zipped, and irradiated with UV light for at least 6 hours. The obtained sample was submerged in pure water to swell to equilibrium at room temperature.
5
Porous PEBAX Membranes with Ionic Liquid
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The thermoplastic elastomer poly(ether-block-amide) (PEBAX@2533, Arkema, Milan, Italy) was used as a precursor of dense membranes (10 wt.%), and 1-dodecyl-3-methylimidazolium cation of [C12C1im]Cl was purchased from IoLiTec (Heilbronn, Germany) and used as the nanofiller at different concentrations of 30, 50, and 70% (w/w), and 1-Proponal (PrOH) and n-butanol (BuOH) (99.5%, Carlo Erba, Milan, Italy) were used in a mixture (1:3 v/v %) to dissolve polymer and nanofiller. All materials were used as received.
6
Fabrication of Organic Solvent Nanofiltration Membranes
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HP-β-CD was purchased from Shandong Binzhou Zhiyuan Biotechnology Co. Ltd. (Shandong, China). Pebax 2533 was commercially supplied by Arkema Inc. (France). TDI and n-heptane were obtained from Fuchen Chemical Reagent Co. Ltd. (Tianjin, China). Evans blue (EB), methyl blue (MB), Congo red (CR), acid fuchsin (AF), Eriochrome black T (EBT), and rhodamine B (RB) were purchased from Sigma-Aldrich (USA). Absolute ethanol, methanol, n-butanol, cyclohexane, and n-hexane were provided by Tianjin Kermel Chemistry Co., Ltd. (Tianjin, China). The commercial PS ultrafiltration membrane with a molecular weight cut-off (MWCO) of 2 × 105 kDa was provided by Beijing Separate Equipment Co. Ltd. (Beijing, China) and used as a substrate membrane to fabricate the OSN membranes. Before being used, the PS substrate membrane was soaked in anhydrous ethanol for 24 h and dried naturally at room temperature. Deionized (DI) water (18.25 MΩ cm) was used throughout all the experiments.
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