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Ferrari HZ, Rodrigues DM, Bernard FL, dos Santos LM, Roux CL, Micoud P, Martin F, Einloft S. A new class of fillers in mixed matrix membranes: use of synthetic silico-metallic mineral particles (SSMMP) as a highly selective component for CO2/N2 separation. Chemical Engineering Journal Advances 2023. [DOI: 10.1016/j.ceja.2023.100488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Chaban VV, Andreeva NA, Bernard FL, M Dos Santos L, Einloft S. Chemical similarity of dialkyl carbonates and carbon dioxide opens an avenue for novel greenhouse gas scavengers: cheap recycling and low volatility via experiments and simulations. Phys Chem Chem Phys 2023; 25:9320-9335. [PMID: 36920377 DOI: 10.1039/d2cp06089b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Global warming linked to the industrial emissions of greenhouse gases may be the end of mankind unless it is adequately and timely handled. To prevent irreversible changes to the climate of the Earth, numerous research groups are striving to develop robust CO2 sorbents. Dialkyl carbonates (DACs) and CO2 exhibit obvious chemical similarities in their structure and properties. The degrees of oxidation of all atoms composing DACs and CO2 are identical resulting in very similar nucleophilicities and electrophilicities of all interaction centers. While both compounds possess relatively high partial atomic charges on their polar moieties, the molecular geometries prevent tight binding of the head groups. The computed DAC-DAC binding energies are ∼40 kJ mol-1, whereas the effect of the alkyl chain length is marginal. The phase transition points and shear viscosities of DACs are very low. We herein hypothesize and numerically rationalize that DACs represent noteworthy physical sorbents for CO2 thanks to the similar sorbent-CO2 and sorbent-sorbent interaction energies. By reporting in silico-derived sorption thermodynamics at various conditions, spectral and structural properties, and experimentally derived CO2 capacities and recyclabilities, we highlight the mutual affinity of DACs and CO2. Indeed, the experimentally determined CO2 sorption capacity of 0.88 mol% (diethyl carbonate) at 278.15 K and 30 bar is competitive. The unprecedentedly low DAC-CO2 binding energies, ∼14 kJ mol-1, suggest a low-cost desorption process and outstanding recyclability of the sorbent. We also note that DACs possessing long alkyl chains (butyl, hexyl, octyl) exhibit negligible volatilities, while preserving the liquid aggregate state over a practically important temperature range. The reported results may foster the development of a new class of CO2 scavengers with possibly quite peculiar characteristics.
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Affiliation(s)
| | - Nadezhda A Andreeva
- Peter the Great St. Petersburg Polytechnic University, Russian Federation.,School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Franciele L Bernard
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Leonardo M Dos Santos
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Sandra Einloft
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil.,Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil
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Polesso BB, Duczinski R, Bernard FL, Faria DJ, dos Santos LM, Einloft S. New water-based nanocapsules of poly(diallyldimethylammonium tetrafluoroborate)/ionic liquid for CO 2 capture. Heliyon 2023; 9:e13298. [PMID: 36755595 PMCID: PMC9900371 DOI: 10.1016/j.heliyon.2023.e13298] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Encapsulated ionic liquids as green solvents for CO2 capture are reported in this work. We present a novel combination of water-based poly(ionic liquid) and imidazolium-based ionic liquids (Emim[X]). Poly(diallyldimethylammonium tetrafluoroborate)/Emim[X] capsules were developed for the first time using Nano Spray Dryer B-90. Capsules were characterized by FTIR, SEM/EDX, TEM, TGA, DSC, CO2 sorption, and CO2/N2 selectivity, CO2 sorption kinetic and recycling were also demonstrated. Comparing the capsules reported in this work, the combination of poly(diallyldimethylammonium tetrafluoroborate) and the ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (P[DADMA]/BF4) showed great potential for CO2 capture and CO2/N2 separation, providing higher results (53.4 mg CO2/g; CO2/N2 selectivity: 4.58).
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Affiliation(s)
- Bárbara B. Polesso
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil
| | - Rafael Duczinski
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil
| | - Franciele L. Bernard
- School of Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil
| | - Douglas J. Faria
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil
| | - Leonardo M. dos Santos
- School of Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil
| | - Sandra Einloft
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil,School of Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil,Corresponding author. Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul – PUCRS, Brazil.
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da Luz M, Dias G, Zimmer H, Bernard FL, do Nascimento JF, Einloft S. Poly(ionic liquid)s-based polyurethane blends: effect of polyols structure and ILs counter cations in CO2 sorption performance of PILs physical blends. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03799-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rodrigues DM, dos Santos LM, Bernard FL, Pinto IS, Zampiva R, Kaufmann G, Einloft S. Imidazolium-based ionic liquid silica xerogel as catalyst to transform CO2 into cyclic carbonate. SN Appl Sci 2020. [DOI: 10.1007/s42452-020-03712-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Faria DJ, Moreira Dos Santos L, Bernard FL, Selbacch Pinto I, Carmona da Motta Resende MA, Einloft S. Dehydrating agent effect on the synthesis of dimethyl carbonate (DMC) directly from methanol and carbon dioxide. RSC Adv 2020; 10:34895-34902. [PMID: 35514376 PMCID: PMC9056860 DOI: 10.1039/d0ra06034h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/15/2020] [Indexed: 11/21/2022] Open
Abstract
CO2 emissions and global warming have increased with the growth of the world economy and industrialization. Direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol (CH3OH) has been considered a promising route from a green chemistry point of view due to global warming mitigation by CO2 emission reduction. However, DMC yield, when obtained by direct synthesis, is limited due to unfavorable thermodynamics and catalyst deactivation by water formation in the reaction process. This problem motivated us to investigate the effect of dehydration on DMC production by direct synthesis. Herein, different dehydrating agents (2,2-dimethoxypropane, sodium sulfate, magnesium oxide and butylene oxide) were combined with molecular sieves to remove the water and minimize the reverse reaction. A new reactor presenting a compartment to accommodate molecular sieves in the gas phase was developed as well. The chemical/product analysis was carried out by gas chromatography and the results were used to calculate methanol conversion and DMC selectivity. The highest methanol conversion value was found for the combination of molecular sieves in the gas phase with 2,2-dimethoxypropane in the reaction liquid phase (methanol conversion = 48.6% and 88% selectivity). The results showed that dehydration systems may promote increased yield in direct DMC synthesis under mild conditions. The dehydration systems tested in this work exhibited excellent conversion and yield as compared to other reported studies. DMC was obtained from methanol and carbon dioxide and a new reactor was proposed for water removal from reaction medium.![]()
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Affiliation(s)
- Douglas José Faria
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS Brazil
| | | | | | - Ingrid Selbacch Pinto
- School of Technology, Pontifical Catholic University of Rio Grande do Sul PUCRS Brazil
| | | | - Sandra Einloft
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS Brazil .,School of Technology, Pontifical Catholic University of Rio Grande do Sul PUCRS Brazil
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Nisar M, Thue PS, Maghous MB, Geshev J, Lima EC, Einloft S. Polysulfone metal-activated carbon magnetic nanocomposites with enhanced CO 2 capture. RSC Adv 2020; 10:34595-34604. [PMID: 35514388 PMCID: PMC9056794 DOI: 10.1039/d0ra06805e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 08/27/2020] [Indexed: 11/21/2022] Open
Abstract
In the present study, polysulfone (PSF)-activated carbon nanocomposites were synthesized by a melt mixing technique. Here, 2 wt% activated carbon (CA, CA-Ni, and CA-Co) was used as filler, and effects on thermal, mechanical, magnetic, morphological, and carbon dioxide capture properties were studied. The pyrolysis of wood sawdust produced carbon materials activated by Co and/or Ni salt. The thermal degradation and the amount of metal in the carbon materials were investigated by thermogravimetric analysis. The maximum degradation temperature showed an improvement of up to 3 °C, while the initial degradation temperature decreased up to 4 °C with the addition of metal-activated carbons. The values of T g estimated by differential scanning calorimetry appear to be practically identical for pure PSF and its nanocomposites. The elasticity modulus of the nanocomposite shows an enhancement of 17% concerning the neat PSF. The water contact angle showed a decrease with the incorporation of the fillers, indicating the hydrophilic nature of the composite. The carbon dioxide sorption capacity of the nanocomposite showed an enhancement of almost 10% in contrast to neat PSF. Ferromagnetic behavior of the thermoplastic nanocomposite was observed with the introduction of 2.0 wt% metal-carbonized filler. The exceptional magnetic properties, for a thermoplastic material such as polysulfone, make it promising for various industrial applications.
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Affiliation(s)
- Muhammad Nisar
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA), Pontifical Catholic University of Rio Grande do Sul (PUCRS) Porto Alegre Brazil
| | - Pascal S Thue
- Institute of Chemistry - Federal University of Rio Grande do Sul (UFRGS) Av. Bento Gonçalves 9500 Porto Alegre RS Brazil
| | - Myriam B Maghous
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA), Pontifical Catholic University of Rio Grande do Sul (PUCRS) Porto Alegre Brazil
| | - Julian Geshev
- Institute of Physics, Federal University of Rio Grande do Sul (UFRGS) Av. Bento Gonçalves 9500 Porto Alegre RS Brazil
| | - Eder C Lima
- Institute of Chemistry - Federal University of Rio Grande do Sul (UFRGS) Av. Bento Gonçalves 9500 Porto Alegre RS Brazil
| | - Sandra Einloft
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA), Pontifical Catholic University of Rio Grande do Sul (PUCRS) Porto Alegre Brazil
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Dos Santos LM, Bernard FL, Polesso BB, Pinto IS, Frankenberg CC, Corvo MC, Almeida PL, Cabrita E, Einloft S. Designing silica xerogels containing RTIL for CO 2 capture and CO 2/CH 4 separation: Influence of ILs anion, cation and cation side alkyl chain length and ramification. J Environ Manage 2020; 268:110340. [PMID: 32383660 DOI: 10.1016/j.jenvman.2020.110340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 01/24/2020] [Accepted: 02/24/2020] [Indexed: 06/11/2023]
Abstract
CO2 separation from natural gas is considered to be a crucial strategy to mitigate global warming problems, meet product specification, pipeline specs and other application specific requirements. Silica xerogels (SX) are considered to be potential materials for CO2 capture due to their high specific surface area. Thus, a series of silica xerogels functionalized with imidazolium, phosphonium, ammonium and pyridinium-based room-temperature ionic liquids (RTILs) were synthesized. The synthesized silica xerogels were characterized by NMR, helium pycnometry, DTA-TG, BET, SEM and TEM. CO2 sorption, reusability and CO2/CH4 selectivity were assessed by the pressure-decay technique. Silica xerogels containing IL demonstrated advantages compared to RTILs used as separation solvents in CO2 capture processes including higher CO2 sorption capacity and faster sorption/desorption. Using fluorinated anion for functionalization of silica xerogels leads to a higher affinity for CO2 over CH4. The best performance was obtained by SX- [bmim] [TF2N] (223.4 mg CO2/g mg/g at 298.15 K and 20 bar). Moreover, SX- [bmim] [TF2N] showed higher CO2 sorption capacity as compared to other reported sorbents. CO2 sorption and CO2/CH4 selectivity results were submitted to an analysis of variance and the means compared using Tukey's test (5%).
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Affiliation(s)
- Leonardo M Dos Santos
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Franciele L Bernard
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Bárbara B Polesso
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Ingrid S Pinto
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Claudio C Frankenberg
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil
| | - Marta C Corvo
- CENIMAT|i3N, Dep. Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Pedro L Almeida
- CENIMAT|i3N, Dep. Ciência dos Materiais, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; ISEL, ADF, Rua Conselheiro Emídio Navarro 1, Lisboa, Portugal
| | - Eurico Cabrita
- UCIBIO, Dep.Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Sandra Einloft
- School of Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil; Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Brazil.
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Prado MA, Dias G, dos Santos LM, Ligabue R, Poirier M, Le Roux C, Micoud P, Martin F, Einloft S. The influence of Ni/Mg content of synthetic Mg/Ni talc on mechanical and thermal properties of waterborne polyurethane nanocomposites. SN Appl Sci 2020. [DOI: 10.1007/s42452-020-2852-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Polesso BB, Bernard FL, Ferrari HZ, Duarte EA, Vecchia FD, Einloft S. Supported ionic liquids as highly efficient and low-cost material for CO 2/CH 4 separation process. Heliyon 2019; 5:e02183. [PMID: 31388596 PMCID: PMC6675942 DOI: 10.1016/j.heliyon.2019.e02183] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 12/10/2018] [Revised: 07/09/2019] [Accepted: 07/25/2019] [Indexed: 11/30/2022] Open
Abstract
Physical immobilization of ionic liquids (ILs) in solid materials appears as an interesting strategy for the development of new sorbents for CO2 separation from natural gas. In this work the effect of physical immobilization of two ionic liquids with different anions (bmim[Cl] and bmim[OAc]) on two mesoporous supports (commercial silica SBA-15 and silica extracted from rice husk) was evaluated for CO2 separation from natural gas by experimental determination of CO2 sorption, CO2/CH4 selectivity and sorption kinetics. Results showed that the pure supports present the greatest CO2 sorption capacity when compared to immobilized ILs. However, CO2 removal efficiency improves considerably in the CO2/CH4 mixture when ILs are immobilized in these supports. The best selectivity results were obtained for supports immobilized with the IL bmim[Cl] and values increased for SIL-Cl by 37% and SBA-Cl 51% when compared with their respective supports. The contribution of SIL-Cl (3.03 ± 0.12) to separation performance (CO2/CH4) is similar to SBA-Cl (3.29 ± 0.39). ILs supported also presented fast sorption kinetics when compared to pure ILs thus being an interesting alternative in the search for highly efficient and low-cost separation processes.
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Affiliation(s)
- Bárbara B Polesso
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil
| | - Franciele L Bernard
- School of Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil
| | - Henrique Z Ferrari
- School of Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil
| | - Evandro A Duarte
- School of Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil
| | - Felipe Dalla Vecchia
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil.,School of Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil.,Institute of Petroleum and Natural Resources, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil
| | - Sandra Einloft
- Post-Graduation Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil.,School of Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Brazil
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Dias G, Prado M, Le Roux C, Poirier M, Micoud P, Ligabue R, Martin F, Einloft S. Synthetic talc as catalyst and filler for waterborne polyurethane-based nanocomposite synthesis. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02789-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Grasel FDS, Behrens MC, Strassburger D, Einloft S, Diz FM, Morrone FB, Wolf CR, Ligabue RA. SYNTHESIS, CHARACTERIZATION AND in vitro CYTOTOXICITY OF Acacia mearnsii PROANTHOCYANIDIN LOADED PLGA MICROPARTICLES. Braz J Chem Eng 2019. [DOI: 10.1590/0104-6632.20190361s20170154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Fábio dos S. Grasel
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; TANAC S/A, Brasil
| | | | | | - Sandra Einloft
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
| | - Fernando M. Diz
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
| | | | | | - Rosane A. Ligabue
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
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Bernard FL, Rodrigues DM, Polesso BB, Chaban VV, Serefin M, Dalla Vecchia F, Einloft S. DEVELOPMENT OF INEXPENSIVE CELLULOSE-BASED SORBENTS FOR CARBON DIOXIDE. Braz J Chem Eng 2019. [DOI: 10.1590/0104-6632.20190361s20170182] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Franciele L. Bernard
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
| | | | | | | | - Marcus Serefin
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
| | | | - Sandra Einloft
- Pontifícia Universidade Católica do Rio Grande do Sul, Brasil; Pontifícia Universidade Católica do Rio Grande do Sul, Brasil
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Bernard FL, dos Santos LM, Schwab MB, Polesso BB, do Nascimento JF, Einloft S. Polyurethane-based poly (ionic liquid)s for CO2
removal from natural gas. J Appl Polym Sci 2019. [DOI: 10.1002/app.47536] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Franciele L. Bernard
- School of Sciences; Pontifical Catholic University of Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Leonardo M. dos Santos
- School of Sciences; Pontifical Catholic University of Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Marina B. Schwab
- School of Technology; Pontifical Catholic University of Rio Grande do Sul (PUCRS); Avenue Ipiranga, 6681, Partenon, CEP: 90619-900, Porto Alegre Brazil
| | - Barbara B. Polesso
- Post-Graduation Program in Materials Engineering and Technology; Pontifical Catholic University of Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | | | - Sandra Einloft
- School of Technology; Pontifical Catholic University of Rio Grande do Sul (PUCRS); Avenue Ipiranga, 6681, Partenon, CEP: 90619-900, Porto Alegre Brazil
- Post-Graduation Program in Materials Engineering and Technology; Pontifical Catholic University of Rio Grande do Sul (PUCRS); Porto Alegre Brazil
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Rodrigues DM, Hunter LG, Bernard FL, Rojas MF, Dalla Vecchia F, Einloft S. Harnessing CO2 into Carbonates Using Heterogeneous Waste Derivative Cellulose-Based Poly(ionic liquids) as Catalysts. Catal Letters 2018. [DOI: 10.1007/s10562-018-2637-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Schütz MK, Lopes NF, Cenci A, Ketzer JMM, Einloft S, Dullius J, Ligabue R. Influence of Alkaline Additives and Buffers on Mineral Trapping of CO 2
under Mild Conditions. Chem Eng Technol 2018. [DOI: 10.1002/ceat.201600513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Marta K. Schütz
- Pontifical Catholic University of Rio Grande do Sul; Engineering and Materials Technology Graduate Program; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
- Pontifical Catholic University of Rio Grande do Sul; Center of Excellence in Research and Innovation in Petroleum, Mineral Resources and Carbon Storage; Institute of Petroleum and Natural Resources; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
| | - Natália F. Lopes
- Pontifical Catholic University of Rio Grande do Sul; Center of Excellence in Research and Innovation in Petroleum, Mineral Resources and Carbon Storage; Institute of Petroleum and Natural Resources; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
| | - Angélica Cenci
- Pontifical Catholic University of Rio Grande do Sul; Center of Excellence in Research and Innovation in Petroleum, Mineral Resources and Carbon Storage; Institute of Petroleum and Natural Resources; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
| | - João Marcelo M. Ketzer
- Pontifical Catholic University of Rio Grande do Sul; Engineering and Materials Technology Graduate Program; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
- Pontifical Catholic University of Rio Grande do Sul; Center of Excellence in Research and Innovation in Petroleum, Mineral Resources and Carbon Storage; Institute of Petroleum and Natural Resources; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
| | - Sandra Einloft
- Pontifical Catholic University of Rio Grande do Sul; Engineering and Materials Technology Graduate Program; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
- Pontifical Catholic University of Rio Grande do Sul; Center of Excellence in Research and Innovation in Petroleum, Mineral Resources and Carbon Storage; Institute of Petroleum and Natural Resources; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
| | - Jeane Dullius
- Pontifical Catholic University of Rio Grande do Sul; Engineering and Materials Technology Graduate Program; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
- Pontifical Catholic University of Rio Grande do Sul; Center of Excellence in Research and Innovation in Petroleum, Mineral Resources and Carbon Storage; Institute of Petroleum and Natural Resources; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
| | - Rosane Ligabue
- Pontifical Catholic University of Rio Grande do Sul; Engineering and Materials Technology Graduate Program; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
- Pontifical Catholic University of Rio Grande do Sul; Center of Excellence in Research and Innovation in Petroleum, Mineral Resources and Carbon Storage; Institute of Petroleum and Natural Resources; Avenida Ipiranga, 6681 90619-900 Porto Alegre-RS Brazil
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De Souza A, Vieira M, Polesso B, Cobalchini F, Bernard F, Dalla Vecchia F, Einloft S. SORÇÃO DE CO2 UTILIZANDO LÍQUIDO IÔNICO ADITIVADO COM EXTENSORES DE ÁREA SUPERFICIAL. QUIM NOVA 2018. [DOI: 10.21577/0100-4042.20170227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Dias G, Prado M, Le Roux C, Poirier M, Micoud P, Ligabue R, Martin F, Einloft S. Analyzing the influence of different synthetic talcs in waterborne polyurethane nanocomposites obtainment. J Appl Polym Sci 2017. [DOI: 10.1002/app.46107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guilherme Dias
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Manoela Prado
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Christophe Le Roux
- ERT 1074 géomatériaux, GET UMR 5563 CNRS, Université de Toulouse; Toulouse France
| | - Mathilde Poirier
- ERT 1074 géomatériaux, GET UMR 5563 CNRS, Université de Toulouse; Toulouse France
| | - Pierre Micoud
- ERT 1074 géomatériaux, GET UMR 5563 CNRS, Université de Toulouse; Toulouse France
| | - Rosane Ligabue
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
- Faculdade de Química (FAQUI), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - François Martin
- ERT 1074 géomatériaux, GET UMR 5563 CNRS, Université de Toulouse; Toulouse France
| | - Sandra Einloft
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
- Faculdade de Química (FAQUI), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
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Vieira MO, Monteiro WF, Neto BS, Ligabue R, Chaban VV, Einloft S. Surface Active Ionic Liquids as Catalyst for CO2 Conversion to Propylene Carbonate. Catal Letters 2017. [DOI: 10.1007/s10562-017-2212-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Vieira MO, Monteiro WF, Ligabue R, Seferin M, Chaban VV, Andreeva NA, do Nascimento JF, Einloft S. Ionic liquids composed of linear amphiphilic anions: Synthesis, physicochemical characterization, hydrophilicity and interaction with carbon dioxide. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Carbonaceous nanotubes with a calculated specific heat of 710[Formula: see text]J K[Formula: see text] Kg[Formula: see text], and an outer diameter of 58[Formula: see text]nm, made by a micro-thermal reaction, using polypyrrole nanotubes precursor is presented here. Three degradation stages from the thermal curves are identified. We observe a decomposition temperature at 371[Formula: see text]C that relates to the presence of amorphous carbon on samples for the first time in this material. Also, it is identified that gradual decomposition of the fragments provides a different kind of residue percentage in the range 48–32% that is related to stirring speed used in each synthesis. It is worthy to note that electron transmission microscope images of carbonaceous nanotubes present defects as well, wherein we identify chloride and nitrogen as doped agents. Finally, results of nanotubes using Infrared, Raman spectrometry analysis, scanning electron microscopy and electron diffraction are presented here.
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Affiliation(s)
- Tiago Fracari
- Graduate Program in Chemistry, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil
| | - Sandra Einloft
- Graduate Engineering and Materials Technology Program, Pontifícia Universidade Católica do, Rio Grande do Sul — 90619900, Porto Alegre — Brazil
| | - Vladimir Lavayen
- Graduate Program in Chemistry, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil
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dos Santos LM, Ligabue R, Dumas A, Le Roux C, Micoud P, Meunier JF, Martin F, Corvo M, Almeida P, Einloft S. Waterborne polyurethane/Fe3O4-synthetic talc composites: synthesis, characterization, and magnetic properties. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2133-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Suarez PA, Einloft S, Dullius JE, de Souza RF, Dupont J. Synthesis and physical-chemical properties of ionic liquids based on 1-n-butyl-3-methylimidazolium cation. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp:1998103] [Citation(s) in RCA: 334] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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24
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Monteiro WF, dos Santos CAB, Einloft S, Oberson M, Carone CLP, Ligabue RA. Preparation of Modified Titanate Nanotubes and Its Application in Polyurethane Nanocomposites. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/masy.201500146] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wesley F. Monteiro
- Graduation Program in Materials Engineering and Technology; PUCRS; Porto Alegre Brazil
| | | | - Sandra Einloft
- Graduation Program in Materials Engineering and Technology; PUCRS; Porto Alegre Brazil
- School of Chemistry; PUCRS; Porto Alegre Brazil
| | | | | | - Rosane A. Ligabue
- Graduation Program in Materials Engineering and Technology; PUCRS; Porto Alegre Brazil
- School of Chemistry; PUCRS; Porto Alegre Brazil
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25
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Bernard FL, Polesso BB, Cobalchini FW, Donato AJ, Seferin M, Ligabue R, Chaban VV, do Nascimento JF, Dalla Vecchia F, Einloft S. CO2 capture: Tuning cation-anion interaction in urethane based poly(ionic liquids). POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.095] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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dos Santos LM, Ligabue R, Dumas A, Le Roux C, Micoud P, Meunier JF, Martin F, Einloft S. New magnetic nanocomposites: Polyurethane/ Fe3O4-synthetic talc. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.05.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Dias G, Prado MA, Carone C, Ligabue R, Dumas A, Martin F, Le Roux C, Micoud P, Einloft S. Synthetic silico-metallic mineral particles (SSMMP) as nanofillers: comparing the effect of different hydrothermal treatments on the PU/SSMMP nanocomposites properties. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1449-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Corvo MC, Sardinha J, Casimiro T, Marin G, Seferin M, Einloft S, Menezes SC, Dupont J, Cabrita EJ. A Rational Approach to CO2 Capture by Imidazolium Ionic Liquids: Tuning CO2 Solubility by Cation Alkyl Branching. ChemSusChem 2015; 8:1935-1946. [PMID: 25916411 DOI: 10.1002/cssc.201500104] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/11/2015] [Indexed: 06/04/2023]
Abstract
Branching at the alkyl side chain of the imidazolium cation in ionic liquids (ILs) was evaluated towards its effect on carbon dioxide (CO2 ) solubilization at 10 and 80 bar (1 bar=1×10(5) Pa). By combining high-pressure NMR spectroscopy measurements with molecular dynamics simulations, a full description of the molecular interactions that take place in the IL-CO2 mixtures can be obtained. The introduction of a methyl group has a significant effect on CO2 solubility in comparison with linear or fluorinated analogues. The differences in CO2 solubility arise from differences in liquid organization caused by structural changes in the cation. ILs with branched cations have similar short-range cation-anion orientations as those in ILs with linear side chains, but present differences in the long-range order. The introduction of CO2 does not cause perturbations in the former and benefits from the differences in the latter. Branching at the cation results in sponge-like ILs with enhanced capabilities for CO2 capture.
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Affiliation(s)
- Marta C Corvo
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal).
| | - João Sardinha
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
| | - Teresa Casimiro
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
| | - Graciane Marin
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS (Brazil)
| | - Marcus Seferin
- PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
| | - Sandra Einloft
- PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
| | | | - Jairton Dupont
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS (Brazil)
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD (UK)
| | - Eurico J Cabrita
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal).
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29
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Aquino AS, Bernard FL, Borges JV, Mafra L, Vecchia FD, Vieira MO, Ligabue R, Seferin M, Chaban VV, Cabrita EJ, Einloft S. Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica. RSC Adv 2015. [DOI: 10.1039/c5ra07561k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Covalently supported ionic liquids in mesoporous materials were prepared by grafting 1-methyl-3-(3-trimethoxysylilpropyl)imidazolium chloride in MCM-41.
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Prado MA, Dias G, Carone C, Ligabue R, Dumas A, Le Roux C, Micoud P, Martin F, Einloft S. Synthetic Ni-talc as filler for producing polyurethane nanocomposites. J Appl Polym Sci 2014. [DOI: 10.1002/app.41854] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Manoela Argenton Prado
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Guilherme Dias
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Carlos Carone
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
- Faculdade de Química (FAQUI)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Rosane Ligabue
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
- Faculdade de Química (FAQUI)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
| | - Angela Dumas
- ERT 1074 Géomatériaux-GET UMR 5563 CNRS-Université de Toulouse; Toulouse France
| | - Christophe Le Roux
- ERT 1074 Géomatériaux-GET UMR 5563 CNRS-Université de Toulouse; Toulouse France
| | - Pierre Micoud
- ERT 1074 Géomatériaux-GET UMR 5563 CNRS-Université de Toulouse; Toulouse France
| | - François Martin
- ERT 1074 Géomatériaux-GET UMR 5563 CNRS-Université de Toulouse; Toulouse France
| | - Sandra Einloft
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais (PGETEMA)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
- Faculdade de Química (FAQUI)-Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Brazil
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31
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Rojas MF, Bernard FL, Aquino A, Borges J, Vecchia FD, Menezes S, Ligabue R, Einloft S. Poly(ionic liquid)s as efficient catalyst in transformation of CO2 to cyclic carbonate. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.05.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Soares RR, Carone C, Einloft S, Ligabue R, Monteiro WF. Synthesis and characterization of waterborne polyurethane/ZnO composites. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1095-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Aquino AS, Bernard FL, Vieira MO, Borges JV, Rojas MF, Vecchia FD, Ligabue RA, Seferin M, Menezes S, Einloft S. A New Approach to CO2Capture and Conversion Using Imidazolium Based-Ionic Liquids as Sorbent and Catalyst. J BRAZIL CHEM SOC 2014. [DOI: 10.5935/0103-5053.20140176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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34
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Magalhães TO, Aquino AS, Vecchia FD, Bernard FL, Seferin M, Menezes SC, Ligabue R, Einloft S. Syntheses and characterization of new poly(ionic liquid)s designed for CO2 capture. RSC Adv 2014. [DOI: 10.1039/c4ra00071d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Corvo MC, Sardinha J, Menezes SC, Einloft S, Seferin M, Dupont J, Casimiro T, Cabrita EJ. Solvation of Carbon Dioxide in [C4mim][BF4] and [C4mim][PF6] Ionic Liquids Revealed by High-Pressure NMR Spectroscopy. Angew Chem Int Ed Engl 2013; 52:13024-7. [DOI: 10.1002/anie.201305630] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/21/2013] [Indexed: 11/12/2022]
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36
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Barud HS, Ribeiro SJL, Carone CLP, Ligabue R, Einloft S, Queiroz PVS, Borges APB, Jahno VD. Optically transparent membrane based on bacterial cellulose/polycaprolactone. Polímeros 2013. [DOI: 10.1590/s0104-14282013005000018] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | | | - C. L. P Carone
- Pontifícia Universidade Católica do Rio Grande do Sul, Brazil
| | - R. Ligabue
- Pontifícia Universidade Católica do Rio Grande do Sul, Brazil
| | - Sandra Einloft
- Pontifícia Universidade Católica do Rio Grande do Sul, Brazil
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37
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Demétrio da Silva V, dos Santos LM, Subda SM, Ligabue R, Seferin M, Carone CLP, Einloft S. Synthesis and characterization of polyurethane/titanium dioxide nanocomposites obtained by in situ polymerization. Polym Bull (Berl) 2013. [DOI: 10.1007/s00289-013-0927-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Alves N, Xavier C, Dullius J, Ligabue R, Ketzer JM, Seferin M, Einloft S. Potencial uso de serpentinito no armazenamento mineral do CO2. QUIM NOVA 2013. [DOI: 10.1590/s0100-40422013000600005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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39
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Santos LMD, Carone CL, Dullius J, Ligabue R, Einloft S. Using different catalysts in the chemical recycling of waste from flexible polyurethane foams. ACTA ACUST UNITED AC 2013. [DOI: 10.4322/polimeros.2013.096] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Bombonato-Prado KF, Wimmers Ferreira MR, Rosa AL, de Oliveira PT, Jahno VD, da Silva JB, Ligabue R, Einloft S. Human Alveolar Bone-Derived Cell-Culture Behaviour on Biodegradable Poly(L-lactic Acid). Journal of Biomaterials Science, Polymer Edition 2012; 20:167-79. [DOI: 10.1163/156856209x404479] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Karina Fittipaldi Bombonato-Prado
- a Department of Morphology, Stomatology and Physiology, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Av. do Café, s/n, 14040-904, Ribeirão Preto, SP, Brazil
| | - Maidy Redher Wimmers Ferreira
- b Department of Morphology, Stomatology and Physiology, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Av. do Café, s/n, 14040-904, Ribeirão Preto, SP, Brazil
| | - Adalberto Luiz Rosa
- c Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Av. do Café, s/n, 14040-904, Ribeirão Preto, SP, Brazil
| | - Paulo Tambasco de Oliveira
- d Department of Morphology, Stomatology and Physiology, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Av. do Café, s/n, 14040-904, Ribeirão Preto, SP, Brazil
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Lima VD, Einloft S, Ketzer JM, Jullien M, Bildstein O, Petronin JC. CO2 Geological storage in saline aquifers: Paraná Basin caprock and reservoir chemical reactivity. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.egypro.2011.02.521] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kunzler C, Alves N, Pereira E, Nienczewski J, Ligabue R, Einloft S, Dullius J. CO2 storage with indirect carbonation using industrial waste. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.egypro.2011.01.149] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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de Lima V, da Silva Pelissoli N, Dullius J, Ligabue R, Einloft S. Kinetic study of polyurethane synthesis using different catalytic systems of Fe, Cu, Sn, and Cr. J Appl Polym Sci 2010. [DOI: 10.1002/app.31298] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Mazur L, da Silva D, Grigull V, Garcia M, Magalhães T, Wagner T, Einloft S, Dullius J, Schneider A, Pezzin A. Strategies of biosynthesis of poly(3-hydroxybutyrate) supplemented with biodiesel obtained from rice bran oil. Materials Science and Engineering: C 2009. [DOI: 10.1016/j.msec.2008.10.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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45
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Suarez PAZ, Einloft S, de S. Basso NR, Fernandes JA, da Motta L, do Amaral LC, Lima DG. The use of crude tall oil as feed-stock for alkyd resins. e-Polymers 2008. [DOI: 10.1515/epoly.2008.8.1.662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe synthesis of modified alkyd resins using a crude tall oil with a content of rosin acids of 39.8 % is described. This material has the composition of fatty acids close to soybean oil, has low cost and is widely available being a forest product industrial residue. The synthetic route includes the reaction of tall oil and maleic anhydride, in the presence of the catalyst (LiOH), followed by polyesterification reaction steps, resulting in an alkyd resin with interesting properties. The acid value (AN) and viscosity were used to follow the reaction, and it appears to be dependent upon the polyalcohol used in the polyesterification step. A period of 15 hours was needed to yield a tack-free coating.
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Affiliation(s)
- Paulo A. Z. Suarez
- 1Instituto de Química, Universidade de Brasília, CP 4478, 70910-904, Brasília-DF, Brazil; Fax number ++556133074149
| | - Sandra Einloft
- 2Faculdade de Química/ PGETEMA, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, 90619-900, Porto Alegre, Brazil
| | - Nara R. de S. Basso
- 2Faculdade de Química/ PGETEMA, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, 90619-900, Porto Alegre, Brazil
| | - Jonas A. Fernandes
- 2Faculdade de Química/ PGETEMA, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, 90619-900, Porto Alegre, Brazil
| | - Ladimir da Motta
- 2Faculdade de Química/ PGETEMA, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, 90619-900, Porto Alegre, Brazil
| | - Lisandra C. do Amaral
- 2Faculdade de Química/ PGETEMA, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, 90619-900, Porto Alegre, Brazil
| | - Daniella G. Lima
- 1Instituto de Química, Universidade de Brasília, CP 4478, 70910-904, Brasília-DF, Brazil; Fax number ++556133074149
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Carone CLP, Fim FC, Bisatto R, Jahno VD, Lemos C, Basso NRS, Einloft S, Galland GB. Ethylene polymerization catalyzed by diamide complexes of Ti(IV) and Zr(IV). J Appl Polym Sci 2008. [DOI: 10.1002/app.28637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jahno VD, Ribeiro GBM, dos Santos LA, Ligabue R, Einloft S, Ferreira MRW, Bombonato-Prado KF. Chemical synthesis and in vitro biocompatibility tests of poly (L-lactic acid). J Biomed Mater Res A 2007; 83:209-15. [PMID: 17437300 DOI: 10.1002/jbm.a.31210] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Polylactic acid is a polymer of great technological interest, whose excellent mechanical properties, thermal plasticity, and bioresorbability render it potentially useful for environmental applications, as a biodegradable plastic and as a biocompatible material in biomedicine. This article discusses the synthesis and characterization of poly-L-lactic acid, obtained through two synthetic routes: direct polycondensation reactions without organic solvents, and in a supercritical medium. Tin complexes were used as catalysts in both polymerization reactions. The polymers were characterized by (1)HNMR, IR, GPC, DSC, and TGA techniques. In vitro biocompatibility tests were performed with human alveolar bone osteoblasts and there were assessed cell adhesion, proliferation and viability. The poly condensation reaction proved to be an excellent synthetic route to produce PLA polymers with different molar mass. The formation of polymers from lactic acid monomer was confirmed through techniques utilized. It was observed that cell adhesion and viability was not disturbed by the presence of the polymer, although the proliferation rate was decreased when compared to control.
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Affiliation(s)
- Vanusca Dalosto Jahno
- Materials Engineering-UFRGS, Av. Bento Gonçalves 9500, Setor IV-Edif. 74-123, 91501-970 Porto Alegre, Brazil.
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Baldissera AF, Valério CES, Basso NRDS, Guaragna F, Einloft S, Tessier M, Fradet A. Synthesis and NMR characterization of aliphatic-aromatic copolyesters by reaction of poly(ethylene terephthalate) post-consumer and poly(ethylene adipate). QUIM NOVA 2005. [DOI: 10.1590/s0100-40422005000200004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Carone C, de Lima V, Albuquerque F, Nunes P, de Lemos C, dos Santos JH, Galland GB, Stedile FC, Einloft S, de S. Basso NR. Zirconium alkoxide complexes as catalysts for ethylene polymerization. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/s1381-1169(03)00540-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Chauvin Y, Einloft S, Olivier H. Catalytic Dimerization of Propene by Nickel-Phosphine Complexes in 1-Butyl-3-methylimidazolium Chloride/AlEtxCl3-x (x = 0, 1) Ionic Liquids. Ind Eng Chem Res 2002. [DOI: 10.1021/ie00043a017] [Citation(s) in RCA: 133] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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