| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Budd, Peter M.
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Mixed matrix and thin-film nanocomposite membranes of PIM-1 and hydrolyzed PIM-1 with Ni- and Co-MOF-74 nanoparticles for CO2 separation: Comparison of blending, grafting and crosslinking fabrication methodscitations
- 2024Stiffening and softening of freshly prepared and aged CTA, PTMSP, and PIM‐1 films exposed to volatile compounds
- 2024High gas permeability in aged superglassy membranes with nanosized UiO-66−NH2/cPIM-1 network fillerscitations
- 2023CO2 separation using thin film composite membranes of acid-hydrolyzed PIM-1citations
- 2022Porous silica nanosheets in PIM-1 membranes for CO2 separationcitations
- 2022Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporationcitations
- 2021Electrospun Adsorptive Nanofibrous Membranes from Ion Exchange Polymers to Snare Textile Dyes from Wastewatercitations
- 2021Electrospun Adsorptive Nanofibrous Membranes from Ion Exchange Polymers to Snare Textile Dyes from Wastewatercitations
- 2021PIM-1/Holey Graphene Oxide Mixed Matrix Membranes for Gas Separation: Unveiling the Role of Holescitations
- 2020Superglassy Polymers to Treat Natural Gas by Hybrid Membrane/Amine Processes: Can Fillers Help?citations
- 2020Graphene–PSS/L-DOPA nanocomposite cation exchange membranes for electrodialysis desalinationcitations
- 2019Electrostatically-coupled graphene oxide nanocomposite cation exchange membranecitations
- 2018Impeded physical aging in PIM-1 membranes containing graphene-like fillerscitations
- 2018Graphene oxide – polybenzimidazolium nanocomposite anion exchange membranes for electrodialysiscitations
- 2018Ultrahigh-permeance PIM-1 based thin film nanocomposite membranes on PAN supports for CO 2 separationcitations
- 2018Ultrahigh-permeance PIM-1 based thin film nanocomposite membranes on PAN supports for CO2 separationcitations
- 2018Graphene/Polyamide Laminates for Supercritical CO 2 and H 2 S Barrier Applications: An Approach toward Permeation Shutdowncitations
- 2018Graphene/Polyamide Laminates for Supercritical CO2 and H2S Barrier Applications: An Approach toward Permeation Shutdowncitations
- 2017Enhanced organophilic separations with mixed matrix membranes of polymers of intrinsic microporosity and graphene-like fillerscitations
- 2016Synthesis and characterization of composite membranes made of graphene and polymers of intrinsic microporositycitations
- 2005Polymerization and carbonization of high internal phase emulsionscitations
- 2004Polymers of intrinsic microporosity (PIMs): Robust, solution-processable, organic nanoporous materialscitations
Places of action
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article
Stiffening and softening of freshly prepared and aged CTA, PTMSP, and PIM‐1 films exposed to volatile compounds
Abstract
<jats:title>Abstract</jats:title><jats:p>Glassy polymers stiffen or soften when exposed to volatile compounds, depending on the specific combination of polymer compound and the specimen history. Relevant to the long‐term applicability of the separation membranes, three common membrane glassy polymers are studied in this work. Freshly prepared and 2‐years aged films from cellulose triacetate (CTA), poly[1‐(trimethylsilyl)‐1‐propyne] (PTMSP), and the archetypal polymer of intrinsic microporosity (PIM‐1) were tested using isothermal Dynamic Mechanical Analysis (DMA) at varied vapor activity. Vapors of organic compounds, in which the polymers do and do not dissolve in the liquid phase (solvents and nonsolvents), were studied at 40 °C, namely: dichloromethane (DCM, solvent), <jats:italic>p</jats:italic>‐xylene (solvent for PTMSP and PIM‐1), and methanol (nonsolvent). Functional groups of the mer units sensitive to the dissolution were identified using Raman spectroscopy. All aged films were stiffer than the freshly prepared ones. Stiffening prevailed for most freshly prepared film‐vapor pairs at low vapor saturations (activity < ≈0.4), except CTA and PIM‐1 in nonsolvent methanol vapors. Softening prevailed for the aged films and higher vapor saturations (activity > ≈0.6). Vapors of the solvents and nonsolvents did not show the expectable prevalence of softening and stiffening, respectively. Physical aging influenced the stiffening and softening of polymer glasses expectably.</jats:p>