| 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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Guerra, Gaetano
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Topics
Publications (10/10 displayed)
- 2024Cocrystalline Phases of Umbelliferone with Syndiotactic Polystyrene: A Route to Achieve Optical Brightening Filmscitations
- 2015Cure reaction of epoxy resins catalyzed by graphite-based nanofillercitations
- 2015Delamination of organically modified montmorillonite for reducing the filler networking with carbon black in poly(1,4-cis-isoprene) based nanocompositescitations
- 2014Delaminated and intercalated organically modified montmorillonite in poly(1,4-cis-isoprene) matrix. Indications of counterintuitive dynamic-mechanical behaviorcitations
- 2014Catalytic Activity of Graphite-Based Nanofillers on Cure Reaction of Epoxy Resinscitations
- 2012Monolithic nanoporous-crystalline aerogels based on PPOcitations
- 2011Nanoporous crystalline phases of poly(2,6-dimethyl-1,4-phenylene)oxidecitations
- 2011Aerogels and polymorphism of isotactic poly(4-methyl-pentene-1)citations
- 2010Hydrogen adsorption by δ and ε crystalline phases of syndiotactic polystyrene aerogelscitations
- 2010Storage of hydrogen as a guest of a nanoporous polymeric crystalline phasecitations
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article
Aerogels and polymorphism of isotactic poly(4-methyl-pentene-1)
Abstract
Monolithic and highly crystalline aerogels of isotactic poly(4-methyl-pentene-1) (i-P4MP1) have been prepared by sudden solvent extraction with supercritical carbon dioxide from thermoreversible gels. The cross-link junctions of i-P4MP1 gels, depending on the solvent, can be constituted by pure polymer crystalline phases (I or III or IV) or by polymer-solvent cocrystalline phases (for cyclohexane and carbon tetrachloride gels). Gels with cocrystalline phases lead to aerogels exhibiting the denser crystalline form II, whereas all the other considered gels lead to aerogels exhibiting the thermodynamically stable form I. Aerogels obtained from form I gels, which do not undergo a crystalline phase transition during the CO(2) extraction process present the high structural stability most suitable for the preparation of porous membranes. The effect of solvents on the aerogel pore structure and morphology has been also investigated by scanning electron microscopy and N(2) sorption measurements. In all cases, the aerogels present highly porous interconnected structures with macropores and mesopores presenting a large size distribution and a vanishing presence of micropores.