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Esteban N, Juan-y-Seva M, Aguilar-Lugo C, Miguel JA, Staudt C, de la Campa JG, Álvarez C, Lozano ÁE. Aromatic Polyimide Membranes with tert-Butyl and Carboxylic Side Groups for Gas Separation Applications-Covalent Crosslinking Study. Polymers (Basel) 2022; 14:polym14245517. [PMID: 36559884 PMCID: PMC9781430 DOI: 10.3390/polym14245517] [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: 11/15/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
A set of aromatic copolyimides was obtained by reaction of 4,4'-(hexafluoroisopropylidene) diphthalic anhydride (6FDA), and mixtures of the diamines 1,4-bis(4-amino-2-trifluoromethylphenoxy)-2,5-di-tert-butylbenzene (CF3TBAPB) and 3,5-diamino benzoic acid (DABA). These polymers were characterized and compared with the homopolymer derived from 6FDA and CF3TBAPB. All copolyimides showed high molecular weight values and good mechanical properties. The presence of carboxylic groups in these copolymers allowed their chemical crosslinking by reaction with 1,4-butanediol. Glass transition temperatures (Tg) were higher than 260 °C, showing the non-crosslinked copolyimides had the highest Tg values. Degradation temperature of crosslinked copolyimides was lower than their corresponding non-crosslinked ones. Mechanical properties of all polymers were good, and thus, copolyimide (precursor, and crosslinked ones) films could be tested as gas separation membranes. It was observed that CO2 permeability values were around 100 barrer. Finally, the plasticization resistance of the crosslinked material having a large number of carboxylic groups was excellent.
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Affiliation(s)
- Noelia Esteban
- IU CINQUIMA, University of Valladolid, Paseo Belén 5, E-47011 Valladolid, Spain
| | - Marta Juan-y-Seva
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
| | - Carla Aguilar-Lugo
- Facultad de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, Coyoacán, Mexico City 04510, Mexico
| | - Jesús A. Miguel
- IU CINQUIMA, University of Valladolid, Paseo Belén 5, E-47011 Valladolid, Spain
| | - Claudia Staudt
- Global Product and System Development Personal Care, BASF, 40789 Monheim, Germany
| | - José G. de la Campa
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
| | - Cristina Álvarez
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
- SMAP, UA-UVA_CSIC, Associated Research Unit to CSIC, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain
- Correspondence: (C.Á.); (Á.E.L.)
| | - Ángel E. Lozano
- IU CINQUIMA, University of Valladolid, Paseo Belén 5, E-47011 Valladolid, Spain
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
- SMAP, UA-UVA_CSIC, Associated Research Unit to CSIC, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain
- Correspondence: (C.Á.); (Á.E.L.)
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Orlova AM, Alentiev AY, Kolesnikov TI, Tsegelskaya AY, Monakhova KZ, Chirkov SV, Nikiforov RY, Abramov IG, Kuznetsov AA. Novel organo-soluble poly(ether imide)s based on diethyltoluenediamine: Synthesis, characterization and gas transport properties. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Du Y, Gou F, Gao D, Liu Z, Shao L, Qi C. Palladium nanoparticles encapsulated in polyimide nanofibers: An efficient and recyclable catalyst for coupling reaction. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yijun Du
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing China
| | - Faliang Gou
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing China
| | - Danning Gao
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing China
| | - Zhifeng Liu
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing China
| | - Linjun Shao
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing China
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Aromatic Copolyamides with Anthrazoline Units in the Backbone: Synthesis, Characterization, Pervaporation Application. Polymers (Basel) 2016; 8:polym8100362. [PMID: 30974642 PMCID: PMC6432349 DOI: 10.3390/polym8100362] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 09/27/2016] [Accepted: 10/10/2016] [Indexed: 11/17/2022] Open
Abstract
Copolyamides with anthrazoline units in the backbone (coPA) were synthesized and dense nonporous films were prepared by solvent evaporation. Glass transition temperature, density, and fractional free volume were determined for the dense nonporous films composed of polyamide and two of its copolymers containing 20 and 30 mol % anthrazoline units in the backbone. Transport properties of the polymer films were estimated by sorption and pervaporation tests toward methanol, toluene, and their mixtures. An increase in anthrazoline fragments content leads to an increasing degree of methanol sorption but to a decreasing degree of toluene sorption. Pervaporation of a methanol–toluene mixture was studied over a wide range of feed concentration (10–90 wt % methanol). Maximal separation factor was observed for coPA-20 containing 20 mol % fragments with anthrazoline units; maximal total flux was observed for coPA-30 with the highest fractional free volume.
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Pethrick RA, Santamaria-Mendia F. Gas permeation and positron annihilation lifetime spectroscopy of poly(ether imide)s with varying ether. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- R. A. Pethrick
- WestCHEM, Department of Pure and Applied Chemistry, Thomas Graham Building; University of Strathclyde; Glasgow G1 1XL UK
| | - F. Santamaria-Mendia
- WestCHEM, Department of Pure and Applied Chemistry, Thomas Graham Building; University of Strathclyde; Glasgow G1 1XL UK
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Konietzny R, Koschine T, Rätzke K, Staudt C. POSS-hybrid membranes for the removal of sulfur aromatics by pervaporation. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2013.12.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Correlation of Gas Permeability in a Metal-Organic Framework MIL-101(Cr)-Polysulfone Mixed-Matrix Membrane with Free Volume Measurements by Positron Annihilation Lifetime Spectroscopy (PALS). MEMBRANES 2013; 3:331-53. [PMID: 24957061 PMCID: PMC4021949 DOI: 10.3390/membranes3040331] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 10/15/2013] [Accepted: 10/16/2013] [Indexed: 11/17/2022]
Abstract
Hydrothermally stable particles of the metal-organic framework MIL-101(Cr) were incorporated into a polysulfone (PSF) matrix to produce mixed-matrix or composite membranes with excellent dispersion of MIL-101 particles and good adhesion within the polymer matrix. Pure gas (O2, N2, CO2 and CH4) permeation tests showed a significant increase of gas permeabilities of the mixed-matrix membranes without any loss in selectivity. Positron annihilation lifetime spectroscopy (PALS) indicated that the increased gas permeability is due to the free volume in the PSF polymer and the added large free volume inside the MIL-101 particles. The trend of the gas transport properties of the composite membranes could be reproduced by a Maxwell model.
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