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  1. Article ; Online: Author Correction: Synthesis and characterization of dendritic compounds containing nitrogen: monomer precursors in the construction of biomimetic membranes.

    Guardià, Jordi / Zare, Alireza / Eleeza, John / Giamberini, Marta / Reina, José Antonio / Montané, Xavier

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 6701

    Language English
    Publishing date 2024-03-20
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-57172-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Readily regenerable amine-free CO

    Yousefe, Mohammad / Ursano, Bruna / Reina, José Antonio / Puga, Alberto

    Journal of environmental management

    2023  Volume 334, Page(s) 117469

    Abstract: Accumulation of anthropogenic ... ...

    Abstract Accumulation of anthropogenic CO
    MeSH term(s) Amines/chemistry ; Carbon Dioxide/chemistry ; Ionic Liquids/chemistry ; Silicon Dioxide/chemistry ; Adsorption
    Chemical Substances Amines ; Carbon Dioxide (142M471B3J) ; Ionic Liquids ; Silicon Dioxide (7631-86-9)
    Language English
    Publishing date 2023-02-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2023.117469
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Readily regenerable amine-free CO2 sorbent based on a solid-supported carboxylate ionic liquid

    Yousefe, Mohammad / Ursano, Bruna / Reina, José Antonio / Puga, Alberto

    Journal of Environmental Management. 2023, p.117469-

    2023  , Page(s) 117469–

    Abstract: Accumulation of anthropogenic CO₂ is undoubtedly the major cause of global warming. In addition to reducing emissions, minimising the threatening effects of climate change in the near future might also require the capture of enormous amounts of CO₂ from ... ...

    Abstract Accumulation of anthropogenic CO₂ is undoubtedly the major cause of global warming. In addition to reducing emissions, minimising the threatening effects of climate change in the near future might also require the capture of enormous amounts of CO₂ from point sources or from the atmosphere. In this regard, the development of novel affordable and energetically attainable capture technologies is greatly needed. In this work, we report rapid and greatly facilitated CO₂ desorption for amine-free carboxylate ionic liquid hydrates as compared to a benchmark amine-based sorbent. Complete regeneration was achieved at moderate temperature (60 °C) over short capture-release cycles using model flue gas on a silica-supported tetrabutylphosphonium acetate ionic liquid hydrate (IL/SiO₂), whereas the polyethyleneimine counterpart (PEI/SiO₂) only recovered half its capacity after the first cycle in a rather sluggish release process under the same conditions. The IL/SiO₂ sorbent achieved a slightly superior working CO₂ capacity than PEI/SiO₂. The easier regeneration of carboxylate ionic liquid hydrates, which behave as chemical CO₂ sorbents leading to bicarbonate in a 1:1 stoichiometry, is due to their relatively low sorption enthalpies (≈40 kJ mol⁻¹). The faster and more efficient desorption from IL/SiO₂ fits a first-order kinetic model (k = 0.73 min⁻¹), whereas a more complex process was observed for PEI/SiO₂ (pseudo-first order initially, k = 0.11 min⁻¹, pseudo-zero order at later stages). The remarkably low regeneration temperature, the absence of amines and the non-volatility of the IL sorbent are favourable assets to minimise gaseous stream contamination. Importantly, regeneration heats -a crucial parameter for practical application- under such conditions are advantageous for IL/SiO₂ (4.3 kJ g (CO₂)⁻¹) vs. PEI/SiO₂, and fall within the range of typical amine sorbents indicating a remarkable performance at this proof-of-concept stage. Further structural design will enhance the feasibility of amine-free ionic liquid hydrates for carbon capture technologies.
    Keywords acetates ; bicarbonates ; carbon ; carbon dioxide ; climate change ; desorption ; enthalpy ; environmental management ; flue gas ; ionic liquids ; kinetics ; polyethyleneimine ; sorbents ; sorption ; stoichiometry ; temperature ; Absorption ; Carbon dioxide capture ; Regeneration energy
    Language English
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2023.117469
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    In stock of ZB MED Bonn / Germany

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  4. Article ; Online: Dielectric Analysis of Blended Polysulfone/Polyethylenimine Membrane Contactors for CO

    Pascual-José, Borja / Zare, Alireza / Giamberini, Marta / Reina, José Antonio / Ribes-Greus, Amparo

    Macromolecular rapid communications

    2023  Volume 45, Issue 5, Page(s) e2300434

    Abstract: Polysulfone membranes, used as contactors for ... ...

    Abstract Polysulfone membranes, used as contactors for CO
    MeSH term(s) Polyethyleneimine/chemistry ; Carbon Dioxide/chemistry ; Benzoates ; Polymers ; Sulfones ; Isocyanates
    Chemical Substances polysulfone P 1700 (25135-51-7) ; Polyethyleneimine (9002-98-6) ; benzoyl chloride (VTY8706W36) ; phenyl isocyanate (196GO6BSOH) ; Carbon Dioxide (142M471B3J) ; Benzoates ; Polymers ; Sulfones ; Isocyanates
    Language English
    Publishing date 2023-12-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1475027-2
    ISSN 1521-3927 ; 1022-1336
    ISSN (online) 1521-3927
    ISSN 1022-1336
    DOI 10.1002/marc.202300434
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Membranes for Cation Transport Based on Dendronized Poly(Epichlorohydrin-Co-Ethylene Oxide). Part 2: Membrane Characterization and Transport Properties.

    Zare, Alireza / Montané, Xavier / Reina, José Antonio / Giamberini, Marta

    Polymers

    2021  Volume 13, Issue 22

    Abstract: In this paper, we report on the preparation and characterization of membranes out of two side-chain liquid crystalline copolymers, dendronized at two different extents (20 and 40%, CP20 and CP40, respectively). The membranes were characterized by atomic ... ...

    Abstract In this paper, we report on the preparation and characterization of membranes out of two side-chain liquid crystalline copolymers, dendronized at two different extents (20 and 40%, CP20 and CP40, respectively). The membranes were characterized by atomic force microscopy (AFM), field-emission scanning electron microscopy (FESEM), contact angle (CA) analysis, and water uptake. Moreover, transport properties were studied by methanol and proton conductivity experiment and by linear sweep voltammetry (LSV). For the sake of comparison, the behavior of the grafted copolymers was compared with the unmodified copolyether CP0 and with Nafion 117. Results demonstrated that in CP20 and CP40, cation transport depends on the presence of defined cationic channels, not affected by water presence; the comparison between LSV experiments performed with different alkaline cations suggests that CP40 possesses channels with larger diameters and better-defined inner structures.
    Language English
    Publishing date 2021-11-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym13223915
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Synthesis and characterization of dendritic compounds containing nitrogen: monomer precursors in the construction of biomimetic membranes.

    Guardià, Jordi / Zare, Alireza / Eleeza, John / Giamberini, Marta / Reina, José Antonio / Montané, Xavier

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 1725

    Abstract: In this article, we synthesized a novel dendritic 2-oxazoline, 2-(3,4,5-tris(4-dodecyloxybenzyloxy)phenyl)-4,5-dihydro-1,3-oxazole), and its amide precursor N-(2-hydroxyethyl)-3,4,5-tris(4-dodecyloxybenzyloxy)benzamide. Of the distinct synthetic routes ... ...

    Abstract In this article, we synthesized a novel dendritic 2-oxazoline, 2-(3,4,5-tris(4-dodecyloxybenzyloxy)phenyl)-4,5-dihydro-1,3-oxazole), and its amide precursor N-(2-hydroxyethyl)-3,4,5-tris(4-dodecyloxybenzyloxy)benzamide. Of the distinct synthetic routes explored, it was established that the direct amidation of esters with sodium methoxide followed by the dehydrative cyclisation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone as oxidizing agent and triphenylphosphine was the most efficient route to synthesize the dendritic 2-oxazoline. Besides, N-(2-hydroxyethyl)-3,4,5-tris(4-dodecyloxybenzyloxy)benzamide exhibited a monotropic columnar mesophase, whilst the dendritic 2-oxazoline does not exhibited a liquid crystalline mesophase. At the end, the first attempts to polymerize the 2-oxazoline monomer via cationic ring opening polymerization showed promising results. Therefore, the dendritic 2-oxazoline could be used as a mesogenic monomer in the synthesis of side-chain liquid-crystalline polyoxazolines that might self-assembly into columnar structures.
    Language English
    Publishing date 2022-02-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-05747-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Dielectric Properties in Oriented and Unoriented Membranes Based on Poly(Epichlorohydrin-co-Ethylene Oxide) Copolymers: Part III.

    Pascual-Jose, B / Zare, Alireza / De la Flor, Silvia / Reina, José Antonio / Giamberini, M / Ribes-Greus, A

    Polymers

    2022  Volume 14, Issue 7

    Abstract: The dielectric spectra and conductivity properties of neat poly(epichlorohydrin-co-ethylene oxide)(PECH-co-EO) copolymer and two modified copolymers with a 20% or 40% of dendron 3,4,5-tris[4-( ...

    Abstract The dielectric spectra and conductivity properties of neat poly(epichlorohydrin-co-ethylene oxide)(PECH-co-EO) copolymer and two modified copolymers with a 20% or 40% of dendron 3,4,5-tris[4-(
    Language English
    Publishing date 2022-03-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym14071369
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Correction: Functionalized fluorescent terephthalate monomers and their attempted polyester formation.

    Choo, Yvonne S L / Giamberini, Marta / Reina, José Antonio / Waddell, Paul G / Benniston, Andrew C

    Organic & biomolecular chemistry

    2020  Volume 18, Issue 45, Page(s) 9316

    Abstract: Correction for 'Functionalized fluorescent terephthalate monomers and their attempted polyester formation' by Yvonne S. L. Choo et al., Org. Biomol. Chem., 2020, 18, 8735-8745, DOI: 10.1039/D0OB01533D. ...

    Abstract Correction for 'Functionalized fluorescent terephthalate monomers and their attempted polyester formation' by Yvonne S. L. Choo et al., Org. Biomol. Chem., 2020, 18, 8735-8745, DOI: 10.1039/D0OB01533D.
    Language English
    Publishing date 2020-11-23
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2097583-1
    ISSN 1477-0539 ; 1477-0520
    ISSN (online) 1477-0539
    ISSN 1477-0520
    DOI 10.1039/d0ob90154g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Membranes for Cation Transport Based on Dendronized Poly(epichlorohydrin-co-ethylene oxide). Part 1: The Effect of Dendron Amount and Column Orientation on Copolymer Mobility.

    Zare, Alireza / Pascual-Jose, Borja / De la Flor, Silvia / Ribes-Greus, Amparo / Montané, Xavier / Reina, José Antonio / Giamberini, Marta

    Polymers

    2021  Volume 13, Issue 20

    Abstract: Dendronized polyethers give rise to columnar LC structures which can successfully act as cation transport materials. Therefore, we prepared two different materials, based on Poly(epichlorohydrin-co-ethylene oxide) (PECH-co-EO) grafted with methyl 3,4,5- ... ...

    Abstract Dendronized polyethers give rise to columnar LC structures which can successfully act as cation transport materials. Therefore, we prepared two different materials, based on Poly(epichlorohydrin-co-ethylene oxide) (PECH-co-EO) grafted with methyl 3,4,5-tris[4-(n-dodecan-1-yloxy)benzyloxy] benzoate, containing 20% or 40% modified units, respectively. The obtained polymers were characterized by differential scanning calorimetry (DSC), X-ray diffraction and optical microscopy between crossed polars (POM) and compared to the unmodified PECH-co-EO. In order to reach efficient transport properties, homeotropically oriented membranes were prepared by a fine-tuned thermal annealing treatment and were subsequently investigated by dynamic mechanical thermal analysis (DMTA) and dielectric thermal analysis (DETA). We found that the presence of the dendrons induces a main chain partial crystallization of the polyether chain and coherently increases the polymer Tg. This effect is more evident in the oriented membranes. As for copolymer orientation upon annealing, the cooling rate and the annealing temperature were the most crucial factors. DMTA and DETA confirmed that grafting with the dendron strongly hinders copolymer motions, but did not show great differences between unoriented and oriented membranes, regardless of the amount of dendrons.
    Language English
    Publishing date 2021-10-14
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym13203532
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: In Situ Raman Spectroscopy as a Tool for Structural Insight into Cation Non-Ionomeric Polymer Interactions during Ion Transport.

    Bogdanowicz, Krzysztof Artur / Pirone, Domenico / Prats-Reig, Judit / Ambrogi, Veronica / Reina, José Antonio / Giamberini, Marta

    Polymers

    2018  Volume 10, Issue 4

    Abstract: Low-modified liquid-crystalline polyether (CP36), as a model compound, was synthesised with the purpose of preparing a membrane with columnar ionic channels. A free-standing cation permselective biomimetic membrane was successfully prepared and found to ... ...

    Abstract Low-modified liquid-crystalline polyether (CP36), as a model compound, was synthesised with the purpose of preparing a membrane with columnar ionic channels. A free-standing cation permselective biomimetic membrane was successfully prepared and found to have channels made of polymeric columns homeotropically oriented, which was confirmed in X-ray diffraction (XRD) analysis. A first insight into a real-time interaction between two selected cations: H⁺ and Na⁺, and polyether during transport through the polymeric membrane was demonstrated using joined chronoamperometry and Raman spectroscopy techniques. Raman studies unveiled the possibility for smaller protons to bypass the usual ionic pathway via polyetheric chain and use outer part of ionic channel for conduction thanks to ester bonds.
    Language English
    Publishing date 2018-04-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym10040416
    Database MEDical Literature Analysis and Retrieval System OnLINE

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