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Li C, Bhandary R, Marinow A, Bachmann S, Pöppler AC, Binder WH. Stability of Quadruple Hydrogen Bonds in an Ionic Liquid Environment. Macromol Rapid Commun 2024; 45:e2300464. [PMID: 37796474 DOI: 10.1002/marc.202300464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/02/2023] [Indexed: 10/06/2023]
Abstract
Hydrogen bonds (H-bonds) are highly sensitive to the surrounding environments owing to their dipolar nature, with polar solvents kown to significantly weaken H-bonds. Herein, the stability of the H-bonding motif ureidopyrimidinone (UPy) is investigated, embedded into a highly polar polymeric ionic liquid (PIL) consisting of pendant pyrrolidinium bis(trifluoromethylsulfonyl)imide (IL) moieties, to study the influence of such ionic environments on the UPy H-bonds. The content of the surrounding IL is changed by addition of an additional low molecular weight IL to further boost the IL content around the UPy moieties in molar ratios of UPy/IL ranging from 1/4 up to 1/113, thereby promoting the polar microenvironment around the UPy-H-bonds. Variable-temperature solid-state MAS NMR spectroscopy and FT-IR spectroscopy demonstrate that the UPy H-bonds are largely present as (UPy-) dimers, but sensitive to elevated temperatures (>70 °C). Subsequent rheology and DSC studies reveal that the ILs only solvate the polymeric chains but do not interfere with the UPy-dimer H-bonds, thus accounting for their high stability and applicability in many material systems.
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Affiliation(s)
- Chenming Li
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120, Halle (Saale), Germany
| | - Rajesh Bhandary
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120, Halle (Saale), Germany
| | - Anja Marinow
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120, Halle (Saale), Germany
| | - Stephanie Bachmann
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ann-Christin Pöppler
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Wolfgang H Binder
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120, Halle (Saale), Germany
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2
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Otvagina KV, Maslov AA, Fukina DG, Petukhov AN, Malysheva YB, Vorotyntsev AV, Sazanova TS, Atlaskin AA, Kapinos AA, Barysheva AV, Suvorov SS, Zanozin ID, Dokin ES, Vorotyntsev IV, Kazarina OV. The Influence of Polycation and Counter-Anion Nature on the Properties of Poly(ionic liquid)-Based Membranes for CO 2 Separation. Membranes (Basel) 2023; 13:539. [PMID: 37367743 DOI: 10.3390/membranes13060539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/08/2023] [Accepted: 05/15/2023] [Indexed: 06/28/2023]
Abstract
The current investigation is focused on the development of composite membranes based on polymeric ionic liquids (PILs) containing imidazolium and pyridinium polycations with various counterions, including hexafluorophosphate, tetrafluoroborate, and bis(trifluoromethylsulfonyl)imide. A combination of spectroscopic methods was used to identify the synthesized PILs and characterize their interaction with carbon dioxide. The density and surface free energy of polymers were performed by wettability measurements, and the results are in good agreement with the permeability and selectivity obtained within the gas transport tests. It was shown that the membranes with a selective layer based on PILs exhibit relatively high permeability with CO2 and high ideal selectivity CO2/CH4 and CO2/N2. Additionally, it was found that the type of an anion significantly affects the performance of the obtained membranes, with the most pronounced effect from bis-triflimide-based polymers, showing the highest permeability coefficient. These results provide valuable insights into the design and optimization of PIL-based membranes for natural and flue gas treatment.
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Affiliation(s)
- Ksenia V Otvagina
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Alexey A Maslov
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Diana G Fukina
- Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Anton N Petukhov
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
- Laboratory of SMART Polymeric Materials and Technologies, Mendeleev University of Chemical Technology, 9 Miusskaya Square, 125047 Moscow, Russia
| | - Yulia B Malysheva
- Organic Chemistry Department, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Andrey V Vorotyntsev
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Tatyana S Sazanova
- Laboratory of SMART Polymeric Materials and Technologies, Mendeleev University of Chemical Technology, 9 Miusskaya Square, 125047 Moscow, Russia
- Laboratory of Membrane and Catalytic Processes, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 Minin Street, 603950 Nizhny Novgorod, Russia
- Laboratory of Ionic Materials, Mendeleev University of Chemical Technology, 9 Miusskaya Square, 125047 Moscow, Russia
| | - Artem A Atlaskin
- Laboratory of SMART Polymeric Materials and Technologies, Mendeleev University of Chemical Technology, 9 Miusskaya Square, 125047 Moscow, Russia
| | - Alexander A Kapinos
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Alexandra V Barysheva
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Sergey S Suvorov
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Ivan D Zanozin
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Egor S Dokin
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
| | - Ilya V Vorotyntsev
- Laboratory of SMART Polymeric Materials and Technologies, Mendeleev University of Chemical Technology, 9 Miusskaya Square, 125047 Moscow, Russia
| | - Olga V Kazarina
- Chemical Engineering Laboratory, Research Institute for Chemistry, N.I. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603950 Nizhny Novgorod, Russia
- Laboratory of Membrane and Catalytic Processes, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 Minin Street, 603950 Nizhny Novgorod, Russia
- Laboratory of Ionic Materials, Mendeleev University of Chemical Technology, 9 Miusskaya Square, 125047 Moscow, Russia
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3
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Miralles-Comins S, Zanatta M, Sans V. Advanced Formulations Based on Poly(ionic liquid) Materials for Additive Manufacturing. Polymers (Basel) 2022; 14. [PMID: 36501514 DOI: 10.3390/polym14235121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/22/2022] [Accepted: 11/22/2022] [Indexed: 11/26/2022] Open
Abstract
Innovation in materials specially formulated for additive manufacturing is of great interest and can generate new opportunities for designing cost-effective smart materials for next-generation devices and engineering applications. Nevertheless, advanced molecular and nanostructured systems are frequently not possible to integrate into 3D printable materials, thus limiting their technological transferability. In some cases, this challenge can be overcome using polymeric macromolecules of ionic nature, such as polymeric ionic liquids (PILs). Due to their tuneability, wide variety in molecular composition, and macromolecular architecture, they show a remarkable ability to stabilize molecular and nanostructured materials. The technology resulting from 3D-printable PIL-based formulations represents an untapped array of potential applications, including optoelectronic, antimicrobial, catalysis, photoactive, conductive, and redox applications.
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Yavir K, Eor P, Kloskowski A, Anderson JL. Polymeric metal-containing ionic liquid sorbent coating for the determination of amines using headspace solid-phase microextraction. J Sep Sci 2021; 44:2620-2630. [PMID: 33892523 DOI: 10.1002/jssc.202100119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 11/06/2022]
Abstract
This study describes the design, synthesis, and application of polymeric ionic liquid sorbent coatings featuring nickel metal centers for the determination of volatile and semivolatile amines from water samples using headspace solid-phase microextraction. The examined polymeric ionic liquid (PIL) sorbent coatings were composed of two ionic liquid monomers (tetra(3-vinylimidazolium)nickel bis[(trifluoromethyl)sulfonyl]imide [Ni2+ (VIM)4 ] 2[NTf2 - ] and 1-vinyl-3-hexylimidazolium [HVIM+ ][NTf2 - ]), and an ionic liquid cross-linker (1,12-di(3-vinylimidazolium)dodecane [(VIM)2 C12 2+ ] 2[NTf2 - ]). With these ionic liquid monomers and cross-linkers, three different types of coatings were prepared: PIL 1 based on the neat [Ni2+ (VIM)4 ] 2[NTf2 - ] monomer, PIL 2 consisting of the [Ni2+ (VIM)4 ] 2[NTf2 - ] monomer with addition of cross-linker, and PIL 3 composed of the [HVIM+ ][NTf2 - ] monomer and cross-linker. Analytical performance of the prepared sorbent coatings using headspace solid-phase microextraction gas chromatography-mass spectrometry was compared with the polydimethylsiloxane and polyacrylate commercial coatings. The PIL 2 sorbent coating yielded the highest enrichment factors ranging from 5500 to over 160 000 for the target analytes. The developed headspace solid-phase microextraction gas chromatography-mass spectrometry method was applied for the analysis of real samples (the concentration of amines was 200 μg/L), producing relative recovery values in the range of 90.9-120.0% (PIL 1) and 83.0-122.7% (PIL 2) from tap water, and 84.8-112.4% (PIL 1) and 79.2-119.3% (PIL 2) from lake water.
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Affiliation(s)
- Kateryna Yavir
- Department of Physical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Philip Eor
- Department of Chemistry, Iowa State University, Ames, Iowa, USA
| | - Adam Kloskowski
- Department of Physical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
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Oh S, Nikolaev A, Tagami K, Tran T, Lee D, Mukherjee S, Segalman RA, Han S, Read de Alaniz J, Chabinyc ML. Redox-Active Polymeric Ionic Liquids with Pendant N-Substituted Phenothiazine. ACS Appl Mater Interfaces 2021; 13:5319-5326. [PMID: 33480673 DOI: 10.1021/acsami.0c20462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Polymers that are elastic while supporting charge transport are desirable for flexible and soft electronics. Many polymers with bulky and conjugated redox-active pendant units have high glass transition temperatures (Tg) in their neutral form that will not lead to elasticity at room temperature. Their behavior in charged form in the solid state without an electrolyte has not been extensively studied. Here, the design strategy of polymeric ionic liquid where two weakly interacting ionic groups are used to maintain a low Tg is shown to lead to flexible redox active polymers. The use of a flexible ethylene backbone and redox-active phenothiazine (PTZ)-based pendant group resulted in polymers with relatively low Tg that are electrically conductive. PTZ that was N-substituted with 2-(2-ethoxyethoxy)ethoxy)ethyl was found to promote solubility of the polymer and lower the Tg of the neutral polymer by ∼150 °C relative to that of the Tg of a variant without the N-substituent. Doping with trifluoromethanesulfonimide leads to an electrically conductive polymer without significantly increasing the Tg. Physical characterization by UV-vis-NIR spectroscopy, electron spin resonance spectroscopy, and impedance spectroscopy verified that the molecular design leads to an efficient charge hopping between the PTZ groups.
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Affiliation(s)
- Saejin Oh
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Andrei Nikolaev
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Kan Tagami
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Thi Tran
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Dongwook Lee
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- California NanoSystems Institute, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Sanjoy Mukherjee
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Rachel A Segalman
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Songi Han
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Javier Read de Alaniz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Michael L Chabinyc
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
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6
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Nie H, Schauser NS, Dolinski ND, Hu J, Hawker CJ, Segalman RA, Read de Alaniz J. Light-Controllable Ionic Conductivity in a Polymeric Ionic Liquid. Angew Chem Int Ed Engl 2020; 59:5123-5128. [PMID: 31925869 DOI: 10.1002/anie.201912921] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 01/05/2020] [Indexed: 01/17/2023]
Abstract
Polymeric ionic liquids (PILs) have attracted considerable attention as electrolytes with high stability and mechanical durability. Light-responsive materials are enabling for a variety of future technologies owing to their remote and noninvasive manipulation, spatiotemporal control, and low environmental impact. To address this potential, responsive PIL materials based on diarylethene units were designed to undergo light-mediated conductivity changes. Key to this modulation is tuning of the cationic character of the imidazolium bridging unit upon photoswitching. Irradiation of these materials with UV light triggers a circa 70 % drop in conductivity in the solid state that can be recovered upon subsequent irradiation with visible light. This light-responsive ionic conductivity enables spatiotemporal and reversible patterning of PIL films using light. This modulation of ionic conductivity allows for the development of light-controlled electrical circuits and wearable photodetectors.
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Affiliation(s)
- Hui Nie
- Department of Chemistry and Biochemistry, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Nicole S Schauser
- Materials Department and Materials Research Laboratory, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Neil D Dolinski
- Materials Department and Materials Research Laboratory, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Jerry Hu
- Materials Department and Materials Research Laboratory, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Craig J Hawker
- Department of Chemistry and Biochemistry, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA.,Materials Department and Materials Research Laboratory, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Rachel A Segalman
- Materials Department and Materials Research Laboratory, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA.,Department of Chemical Engineering, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Javier Read de Alaniz
- Department of Chemistry and Biochemistry, University of California-Santa Barbara, Santa Barbara, CA, 93106, USA
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7
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Vollas A, Chouliaras T, Deimede V, Ioannides T, Kallitsis J. New Pyridinium Type Poly(Ionic Liquids) as Membranes for CO₂ Separation. Polymers (Basel) 2018; 10:polym10080912. [PMID: 30960837 PMCID: PMC6403706 DOI: 10.3390/polym10080912] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/07/2018] [Accepted: 08/09/2018] [Indexed: 11/23/2022] Open
Abstract
New pyridinium based PILs have been prepared by modification of their precursors based on high molecular weight aromatic polyethers bearing main chain pyridine units. The proposed methodology involves the conversion of the precursors to their ionic analogues via N-methylation reaction, followed by anion exchange methathesis reaction to result in PILs with the desirable anions (tetrafluoroborate and bis(trifluoromethylsulfonyl)imide). These PILs show excellent thermal stability, excellent mechanical properties, and most importantly can form very thin, free standing films with minimum thickness of 3 μm. As expected, the PIL containing the TFSI− anion showed improved CO2 and CH4 permeabilities compared to its analogue containing the BF4−. PIL-IL composites membranes have also been prepared using the same PIL and different percentages of pyridinium based IL where it was shown that the membrane with the highest IL weight percentage (45 wt %) showed the highest CO2 permeability (11.8 Barrer) and a high CO2/CH4 ideal selectivity of 35 at room temperature.
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Affiliation(s)
| | | | - Valadoula Deimede
- Department of Chemistry, University of Patras, GR-26504 Patras, Greece.
| | - Theophilos Ioannides
- Foundation for Research and Technology-Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), GR-26504 Patras, Greece.
| | - Joannis Kallitsis
- Department of Chemistry, University of Patras, GR-26504 Patras, Greece.
- Foundation for Research and Technology-Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), GR-26504 Patras, Greece.
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Großeheilmann J, Bandomir J, Kragl U. Preparation of Poly(ionic liquid)s-Supported Recyclable Organocatalysts for the Asymmetric Nitroaldol (Henry) Reaction. Chemistry 2015; 21:18957-60. [PMID: 26526874 DOI: 10.1002/chem.201504290] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Indexed: 11/10/2022]
Abstract
A novel strategy for the embedding of quinine-based organocatalysts in polymerized ionic liquids-based hydrogels is presented. With this technique, the encapsulated organocatalyst was successfully recovered and reused for four cycles without any loss of enantioselectivity (up to 91% ee) for the asymmetric nitroaldol (Henry) reaction. In this study, high catalyst leaching was significantly reduced (<0.01%) by controlling the water content. After catalyst removal, evaporation of the solvent affords the product in 98% purity without any further purification.
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Affiliation(s)
- Julia Großeheilmann
- Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3a, 18059 Rostock (Germany)
| | - Jenny Bandomir
- Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3a, 18059 Rostock (Germany)
| | - Udo Kragl
- Department of Chemistry, University of Rostock, Albert-Einstein-Straße 3a, 18059 Rostock (Germany).
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Gallagher S, Florea L, Fraser KJ, Diamond D. Swelling and shrinking properties of thermo-responsive polymeric ionic liquid hydrogels with embedded linear pNIPAAM. Int J Mol Sci 2014; 15:5337-49. [PMID: 24681582 PMCID: PMC4013567 DOI: 10.3390/ijms15045337] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 03/19/2014] [Accepted: 03/24/2014] [Indexed: 11/23/2022] Open
Abstract
In this study, varying concentrations of linear pNIPAAM have been incorporated for the first time into a thermo-responsive polymeric ionic liquid (PIL) hydrogel, namely tributyl-hexyl phosphonium 3-sulfopropylacrylate (P-SPA), to produce semi-interpenetrating polymer networks. The thermal properties of the resulting hydrogels have been investigated along with their thermo-induced shrinking and reswelling capabilities. The semi-interpenetrating networks (IPN) hydrogels were found to have improved shrinking and reswelling properties compared with their PIL counterpart. At elevated temperatures (50-80 °C), it was found that the semi-IPN with the highest concentration of hydrophobic pNIPAAM exhibited the highest shrinking percentage of ~40% compared to the conventional P-SPA, (27%). This trend was also found to occur for the reswelling measurements, with semi-IPN hydrogels producing the highest reswelling percentage of ~67%, with respect to its contracted state. This was attributed to an increase in water affinity due to the presence of hydrophilic pNIPAAM. Moreover, the presence of linear pNIPAAM in the polymer matrix leads to improved shrinking and reswelling response compared to the equivalent PIL.
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Affiliation(s)
- Simon Gallagher
- CLARITY, the Centre for Sensor Web Technologies, National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
| | - Larisa Florea
- Insight Centre for Data Analytics, Dublin City University, Dublin 9, Ireland.
| | - Kevin J Fraser
- Insight Centre for Data Analytics, Dublin City University, Dublin 9, Ireland.
| | - Dermot Diamond
- CLARITY, the Centre for Sensor Web Technologies, National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
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Panniello A, Ingrosso C, Coupillaud P, Tamborra M, Binetti E, Curri ML, Agostiano A, Taton D, Striccoli M. Nanocomposites Based on Luminescent Colloidal Nanocrystals and Polymeric Ionic Liquids towards Optoelectronic Applications. Materials (Basel) 2014; 7:591-610. [PMID: 28788477 PMCID: PMC5453139 DOI: 10.3390/ma7010591] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 01/09/2014] [Accepted: 01/16/2014] [Indexed: 11/16/2022]
Abstract
Polymeric ionic liquids (PILs) are an interesting class of polyelectrolytes, merging peculiar physical-chemical features of ionic liquids with the flexibility, mechanical stability and processability typical of polymers. The combination of PILs with colloidal semiconducting nanocrystals leads to novel nanocomposite materials with high potential for batteries and solar cells. We report the synthesis and properties of a hybrid nanocomposite made of colloidal luminescent CdSe nanocrystals incorporated in a novel ex situ synthesized imidazolium-based PIL, namely, either a poly(N-vinyl-3-butylimidazolium hexafluorophosphate) or a homologous PIL functionalized with a thiol end-group exhibiting a chemical affinity with the nanocrystal surface. A capping exchange procedure has been implemented for replacing the pristine organic capping molecules of the colloidal CdSe nanocrystals with inorganic chalcogenide ions, aiming to disperse the nano-objects in the PILs, by using a common polar solvent. The as-prepared nanocomposites have been studied by TEM investigation, UV-Vis, steady-state and time resolved photoluminescence spectroscopy for elucidating the effects of the PIL functionalization on the morphological and optical properties of the nanocomposites.
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Affiliation(s)
- Annamaria Panniello
- Institute for Physical and Chemical Processes (IPCF), Bari Division, National Research Council C.N.R. c/o, Department of Chemistry, via Orabona 4, 70126 Bari, Italy.
| | - Chiara Ingrosso
- Institute for Physical and Chemical Processes (IPCF), Bari Division, National Research Council C.N.R. c/o, Department of Chemistry, via Orabona 4, 70126 Bari, Italy.
| | - Paul Coupillaud
- Laboratoire de Chimie des Polymères Organiques, Centre National de la Recherche Scientifique and Laboratoire de Chimie des Polymères Organiques, Université Bordeaux, Ecole Nationale Supérieure de Chimie de Biologie and de Physique, 16, Avenue Pey-Berland, 33607 Pessac Cedex, France.
| | - Michela Tamborra
- Institute for Physical and Chemical Processes (IPCF), Bari Division, National Research Council C.N.R. c/o, Department of Chemistry, via Orabona 4, 70126 Bari, Italy.
| | - Enrico Binetti
- Institute for Physical and Chemical Processes (IPCF), Bari Division, National Research Council C.N.R. c/o, Department of Chemistry, via Orabona 4, 70126 Bari, Italy.
- Now at Institute for Composite and Biomedical Materials, National Research Council, Via Sommarive, 14, 38123 Trento, Italy.
| | - Maria Lucia Curri
- Institute for Physical and Chemical Processes (IPCF), Bari Division, National Research Council C.N.R. c/o, Department of Chemistry, via Orabona 4, 70126 Bari, Italy.
| | - Angela Agostiano
- Institute for Physical and Chemical Processes (IPCF), Bari Division, National Research Council C.N.R. c/o, Department of Chemistry, via Orabona 4, 70126 Bari, Italy.
- Department of Chemistry, University of Bari "Aldo Moro", Via Orabona 4, 70126 Bari, Italy.
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques, Centre National de la Recherche Scientifique and Laboratoire de Chimie des Polymères Organiques, Université Bordeaux, Ecole Nationale Supérieure de Chimie de Biologie and de Physique, 16, Avenue Pey-Berland, 33607 Pessac Cedex, France.
| | - Marinella Striccoli
- Institute for Physical and Chemical Processes (IPCF), Bari Division, National Research Council C.N.R. c/o, Department of Chemistry, via Orabona 4, 70126 Bari, Italy.
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