1
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Tao Q, Henriquez FN, Ding K, Man WL, Lui MY. One-pot chitin pulping using recyclable superbase-based protic ionic liquid. Carbohydr Polym 2024; 327:121680. [PMID: 38171690 DOI: 10.1016/j.carbpol.2023.121680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/14/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024]
Abstract
The application of ionic liquids and deep eutectic solvents offers a promising opportunity for a more environmentally friendly and straightforward chitin purification process from crustacean shells. Nonetheless, the insufficient recyclability of these ionic solvents poses a challenge to the long-term sustainability of such extraction methods. Thus, there is a strong imperative to focus on employing easily recyclable ionic liquids for chitin isolation, enhancing the overall sustainability of the process. In this investigation, a direct chitin purification procedure that utilized pulping liquors consisting of the superbase-based protic ionic liquid 1,5-diazabicyclo[4.3.0]non-5-enium acetate and its precursor, acetic acid, was developed. It was demonstrated that these pulping liquors were capable of simultaneously deproteinate and demineralize shrimp shells to generate chitins with higher purity, degree of N-acetylation and crystallinity than commercially obtained chitin. More significantly, the pulping liquors can be recycled to their pure form in high quantity by simple distillation under reduced pressure, allowing the reuse of these mixtures, which give chitin of nearly identical purity.
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Affiliation(s)
- Qingqing Tao
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Felipe Nunes Henriquez
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Kang Ding
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Wai Lun Man
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Matthew Y Lui
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
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2
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Savale N, Tarasova E, Krasnou I, Kudrjašova M, Rjabovs V, Reile I, Heinmaa I, Krumme A. Optimization and degradation studies of cellulose transesterification to palmitate esters in superbase ionic liquid. Carbohydr Res 2024; 537:109047. [PMID: 38359696 DOI: 10.1016/j.carres.2024.109047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/17/2024]
Abstract
Cellulose palmitates (CPs) were synthesized with varying degrees of substitution (DS) via a catalyst-free, homogeneous transesterification of cellulose in a novel superbase ionic liquid (SB-IL) system, specifically 5-methyl-1,5,7-triaza-bicyclo[4.3.0]non-6-enium acetate [mTBNH][OAc], combined with dimethyl sulfoxide (DMSO) as a co-solvent, using vinyl palmitate as the acylating agent. We examined the influence of reaction temperature, reaction time, and the molar ratio of vinyl palmitate to anhydroglucose unit (AGU) on the DS, which ranged from 0.5 to 2.3 under the given conditions. Notably, the reaction order of the three hydroxy groups was C6-OH > C2-OH > C3-OH. To elucidate the chemical structure of CPs and confirm the transesterification process, various spectroscopic techniques including 1H nuclear magnetic resonance (NMR), 13C NMR, heteronuclear single quantum correlation (HSQC), and solid-state NMR were employed. Higher reaction temperatures and extended reaction times led to a decrease in the DS of CPs, potentially due to the degradation of some of the involved chemicals during the transesterification process. We also investigated the stability of the pure ionic liquid (IL) and the IL + DMSO solvent system at elevated temperatures by heating them at 100 °C for 5 h, confirming their chemical integrity through 1H NMR analysis. Additionally, we assessed the compatibility between the solvent system and cellulose by subjecting a mixture of cellulose and the solvent system to 100 °C for 5 h. To compare the structures of untreated cellulose and regenerated cellulose, Fourier transform infrared (FT-IR) spectroscopy was employed. Furthermore, we determined the molar mass of both untreated cellulose and regenerated cellulose, as well as CPs synthesized at higher reaction temperatures and longer durations, using intrinsic viscosity measurements. Lastly, we examined the solubility properties of CPs.
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Affiliation(s)
- N Savale
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia.
| | - E Tarasova
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia
| | - I Krasnou
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia
| | - M Kudrjašova
- School of Science, Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618, Tallinn, Estonia
| | - V Rjabovs
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618, Tallinn, Estonia
| | - I Reile
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618, Tallinn, Estonia
| | - I Heinmaa
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618, Tallinn, Estonia
| | - A Krumme
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia
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Tarasova E, Savale N, Krasnou I, Kudrjašova M, Rjabovs V, Reile I, Vares L, Kallakas H, Kers J, Krumme A. Preparation of Thermoplastic Cellulose Esters in [mTBNH][OAC] Ionic Liquid by Transesterification Reaction. Polymers (Basel) 2023; 15:3979. [PMID: 37836028 PMCID: PMC10575218 DOI: 10.3390/polym15193979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
The transesterification of cellulose with vinyl esters in ionic liquid media is suggested as a prospective environmentally friendly alternative to conventional esterification. In this study, various long-chain cellulose esters (laurate, myristate, palmitate, and stearate) with a degree of substitution (DS) up to 1.8 have been synthesized in novel distillable ionic liquid, [mTBNH][OAC]. This IL has high dissolving power towards cellulose, which can improve homogeneous transesterification. Additionally, [mTBNH][OAC] has durability towards recycling and can be regenerated and re-used again for the next cycles of esterification. DMSO is used as a co-solvent because of its ability to speed up mass transport due to lower solvent viscosity. The optimization of the reaction parameters, such as co-solvent content, temperature (20-80 °C), reaction time (1-5 h), and a molar ratio of reactants (1-5 eq. AGU) is reported. It was found that within studied reaction conditions, DS increases with increasing reaction time, temperature, and added vinyl esters. Structure analysis using FTIR, 1H, and 13C NMR after acylation revealed the introduction of the alkyl chains into cellulose for all studied samples. The results also suggested that the substitution order of the OH group is C7-O6 > C7-O2 > C7-O3. Unique, complex thermal and rheological investigation of the cellulose esters shows the growth of an amorphous phase upon the degree of substitution. At the same time, the homogeneous substitution of cellulose with acyl chains increases the melt viscosity of a material. Internal plasticization in cellulose esters was found to be the mechanism for the melt processing of the material. Long-chain cellulose esters show the potential to replace commonly used externally plasticized cellulose derivatives.
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Affiliation(s)
- Elvira Tarasova
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; (E.T.); (N.S.); (J.K.); (A.K.)
| | - Nutan Savale
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; (E.T.); (N.S.); (J.K.); (A.K.)
| | - Illia Krasnou
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; (E.T.); (N.S.); (J.K.); (A.K.)
| | - Marina Kudrjašova
- School of Science, Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Vitalijs Rjabovs
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Indrek Reile
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Lauri Vares
- Faculty of Science and Technology, Institute of Technology, Tartu University, Nooruse 1, 50090 Tartu, Estonia
| | - Heikko Kallakas
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; (E.T.); (N.S.); (J.K.); (A.K.)
| | - Jaan Kers
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; (E.T.); (N.S.); (J.K.); (A.K.)
| | - Andres Krumme
- School of Engineering, Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; (E.T.); (N.S.); (J.K.); (A.K.)
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Zhang Y, Su Z, Xue K, Xing J, Fan D, Qi J, Zhu Z, Wang Y. Efficient Separation of Methyl tert-Butyl Ether Using Ionic Liquids from Computational Thermodynamics to Process Intensification. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanli Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
| | - Zihao Su
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
| | - Ke Xue
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
| | - Jiafu Xing
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
| | - Dingchao Fan
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
| | - Jianguang Qi
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
| | - Zhaoyou Zhu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
| | - Yinglong Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao266042, China
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Khachatrian AA, Solomonov BN. The comparative analysis of solvation thermochemistry of organic non-electrolytes in ionic liquids and molecular solvents. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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6
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Schlapp-Hackl I, Witos J, Ojha K, Uusi-Kyyny P, Alopaeus V, Sixta H. Application-Related Consideration of the Thermal Stability of [mTBDH][OAc] Compared to Amidine-Based Ionic Liquids in the Presence of Various Amounts of Water. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04015] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Inge Schlapp-Hackl
- Department of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, FI-02150 Espoo, Finland
| | - Joanna Witos
- Department of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, FI-02150 Espoo, Finland
| | - Krishna Ojha
- Department of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, FI-02150 Espoo, Finland
| | - Petri Uusi-Kyyny
- Department of Chemical and Metallurgical Engineering, Aalto University, Kemistintie 1, FI-02150 Espoo, Finland
| | - Ville Alopaeus
- Department of Chemical and Metallurgical Engineering, Aalto University, Kemistintie 1, FI-02150 Espoo, Finland
- Department of Chemical Engineering, Mid Sweden University, Holmgatan 10, SE-85170 Sundsvall, Sweden
| | - Herbert Sixta
- Department of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, FI-02150 Espoo, Finland
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Sensing Techniques for Organochlorides through Intermolecular Interaction with Bicyclic Amidines. BIOSENSORS 2021; 11:bios11110413. [PMID: 34821631 PMCID: PMC8615940 DOI: 10.3390/bios11110413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/21/2022]
Abstract
Toxic organochloride molecules are widely used in industry for various purposes. With their high volatility, the direct detection of organochlorides in environmental samples is challenging. Here, a new organochloride detection mechanism using 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) is introduced to simplify a sensing method with higher detection sensitivity. Three types of organochloride compounds-trichloroethylene (TCE), dichloromethane (DCM), and dichlorodiphenyltrichloroethane (DDT)—were targeted to understand DCM conjugation chemistry by using nuclear magnetic resonance (NMR) and liquid chromatography with a mass spectrometer (LC-MS). 13C-NMR spectra and LC-MS data indicated that DBN can be labeled on these organochloride compounds by chlorine–nitrogen interaction. Furthermore, to demonstrate the organochloride sensing capability, the labeling yield and limit of detection were determined by a colorimetric assay as well as micellar electrokinetic chromatography (MEKC). The interaction with DBN was most appreciable for TCE, among other organochlorides. TCE was detected at picomolar levels, which is two orders of magnitude lower than the maximum contaminant level set by the United States Environmental Protection Agency. MEKC, in conjunction with this DBN-labeling method, enables us to develop a field-deployable sensing platform for detecting toxic organochlorides with high sensitivity.
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Elsayed S, Viard B, Guizani C, Hellsten S, Witos J, Sixta H. Limitations of Cellulose Dissolution and Fiber Spinning in the Lyocell Process Using [mTBDH][OAc] and [DBNH][OAc] Solvents. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04283] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sherif Elsayed
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, Aalto FI-00076, Finland
| | - Benjamin Viard
- The International School of Paper, Print Media and Biomaterials (Pagora), Grenoble Institute of Technology, BP 65, Saint Martin d’Hères Cedex F-38402, France
| | - Chamseddine Guizani
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, Aalto FI-00076, Finland
| | - Sanna Hellsten
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, Aalto FI-00076, Finland
| | - Joanna Witos
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, Aalto FI-00076, Finland
| | - Herbert Sixta
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, Aalto FI-00076, Finland
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9
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Khachatrian AA, Rakipov IT, Solomonov BN, Verevkin SP. Intermolecular interaction of organic solutes with protic [MIM][NO3] and aprotic [EMIM][NO3] ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112243] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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10
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Hyde AM, Calabria R, Arvary R, Wang X, Klapars A. Investigating the Underappreciated Hydrolytic Instability of 1,8-Diazabicyclo[5.4.0]undec-7-ene and Related Unsaturated Nitrogenous Bases. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00187] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alan M. Hyde
- Department of Process Research & Development, MRL, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Ralph Calabria
- Department of Process Research & Development, MRL, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Rebecca Arvary
- Department of Process Research & Development, MRL, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Xiao Wang
- Department of Process Research & Development, MRL, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Artis Klapars
- Department of Process Research & Development, MRL, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
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Reyes G, Aguayo MG, Fernández Pérez A, Pääkkönen T, Gacitúa W, Rojas OJ. Dissolution and Hydrolysis of Bleached Kraft Pulp Using Ionic Liquids. Polymers (Basel) 2019; 11:E673. [PMID: 31013748 PMCID: PMC6523854 DOI: 10.3390/polym11040673] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/03/2019] [Accepted: 04/08/2019] [Indexed: 02/07/2023] Open
Abstract
Forestry industries in Chile are facing an important challenge-diversifying their products using green technologies. In this study, the potential use of Ionic Liquids (ILs) to dissolve and hydrolyze eucalyptus wood (mix of Eucalyptus nitens and Eucalyptus globulus) kraft pulp was studied. The Bleached Hardwood Kraft Pulp (BHKP) from a Chilean pulp mill was used together with five different ILs: 1-butyl-3-methylimidazolium chloride [bmim][Cl], 1-butyl-3-methylimidazolium acetate [bmim][Ac], 1-butyl-3-methylimidazolium hydrogen sulfate [bmim][HSO4], 1-ethyl-3-methylimidazolium chloride [emim][Cl], 1-ethyl-3-methylimidazolium acetate [emim][Ac]. Experimentally, one vacuum reactor was designed to study the dissolution/hydrolysis process for each ILs; particularly, the cellulose dissolution process using [bmim][Cl] was studied proposing one molecular dynamic model. Experimental characterization using Atomic Force Microscopy, conductometric titration, among other techniques suggest that all ILs are capable of cellulose dissolution at different levels; in some cases, the dissolution evolved to partial hydrolysis appearing cellulose nanocrystals (CNC) in the form of spherical aggregates with a diameter of 40-120 nm. Molecular dynamics simulations showed that the [bmim][Cl] anions tend to interact actively with cellulose sites and water molecules in the dissolution process. The results showed the potential of some ILs to dissolve/hydrolyze the cellulose from Chilean Eucalyptus, maintaining reactive forms.
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Affiliation(s)
- Guillermo Reyes
- Departamento de Ingeniería en Maderas, Facultad de Ingeniería, Universidad del Bío-Bío, Av. Collao 1202, Casilla 5-C, Concepción C.P. 4081112, Chile.
| | - María Graciela Aguayo
- Departamento de Ingeniería en Maderas, Facultad de Ingeniería, Universidad del Bío-Bío, Av. Collao 1202, Casilla 5-C, Concepción C.P. 4081112, Chile.
- Nanomateriales y Catálisis para Procesos Sustentables, Departamento de Ingeniería en Maderas, Facultad de Ingeniería, Universidad del Bío-Bío, Av. Collao 1202, Casilla 5-C, Concepción C.P. 4081112, Chile.
| | - Arturo Fernández Pérez
- Departamento de Física, Facultad de Ciencias, Universidad del Bío-Bío, Av. Collao 1202, Casilla 5-C, Concepción C.P. 4081112, Chile.
| | - Timo Pääkkönen
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo P.O. Box 11000, Finland.
| | - William Gacitúa
- Departamento de Ingeniería en Maderas, Facultad de Ingeniería, Universidad del Bío-Bío, Av. Collao 1202, Casilla 5-C, Concepción C.P. 4081112, Chile.
- Nanomateriales y Catálisis para Procesos Sustentables, Departamento de Ingeniería en Maderas, Facultad de Ingeniería, Universidad del Bío-Bío, Av. Collao 1202, Casilla 5-C, Concepción C.P. 4081112, Chile.
| | - Orlando J Rojas
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo P.O. Box 11000, Finland.
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12
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Reyes G, Borghei M, King AWT, Lahti J, Rojas OJ. Solvent Welding and Imprinting Cellulose Nanofiber Films Using Ionic Liquids. Biomacromolecules 2018; 20:502-514. [PMID: 30540441 DOI: 10.1021/acs.biomac.8b01554] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cellulose nanofiber films (CNFF) were treated via a welding process using ionic liquids (ILs). Acid-base-conjugated ILs derived from 1,5-diazabicyclo[4.3.0]non-5-ene [DBN] and 1-ethyl-3-methylimidazolium acetate ([emim][OAc]) were utilized. The removal efficiency of ILs from welded CNFF was assessed using liquid-state nuclear magnetic resonance (NMR) spectroscopy and Fourier transform infrared spectroscopy (FTIR). The mechanical and physical properties of CNFF indicated surface plasticization of CNFF, which improved transparency. Upon treatment, the average CNFF toughness increased by 27%, and the films reached a Young's modulus of ∼5.8 GPa. These first attempts for IL "welding" show promise to tune the surfaces of biobased films, expanding the scope of properties for the production of new biobased materials in a green chemistry context. The results of this work are highly relevant to the fabrication of CNFFs using ionic liquids and related solvents.
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Affiliation(s)
- Guillermo Reyes
- Departamento de Ingeniería en Maderas DIMAD , Universidad del Bío-Bío , Av. Collao 1202, Casilla 5-C , Concepción 4081112 , Chile
| | - Maryam Borghei
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , FI-00076 Espoo , Finland
| | - Alistair W T King
- Materials Chemistry, Department of Chemistry , University of Helsinki , FI-00014 Helsinki , Finland
| | - Johanna Lahti
- Tampere University of Technology , FI-33101 Tampere , Finland
| | - Orlando J Rojas
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , FI-00076 Espoo , Finland
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13
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Pyykkö P. Simple Estimates for Eutectic Behavior. Chemphyschem 2018; 20:123-127. [DOI: 10.1002/cphc.201800922] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/13/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Pekka Pyykkö
- Department of Chemistry; University of Helsinki; POB 55 (A. I. Virtasen aukio 1) 00014 Helsinki Finland
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15
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The ability of ionic liquids to form hydrogen bonds with organic solutes evaluated by different experimental techniques. Part I. Alkyl substituted imidazolium and sulfonium based ionic liquids. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.136] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Chen K, Wang Y, Yao J, Li H. Equilibrium in Protic Ionic Liquids: The Degree of Proton Transfer and Thermodynamic Properties. J Phys Chem B 2017; 122:309-315. [DOI: 10.1021/acs.jpcb.7b10671] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kaizhou Chen
- Department of Chemistry, ZJU-NHU United R&D Center and ‡State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yongtao Wang
- Department of Chemistry, ZJU-NHU United R&D Center and ‡State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jia Yao
- Department of Chemistry, ZJU-NHU United R&D Center and ‡State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Haoran Li
- Department of Chemistry, ZJU-NHU United R&D Center and ‡State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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17
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Ribeiro FMS, Lima CFRAC, Vaz ICM, Rodrigues ASMC, Sapei E, Melo A, Silva AMS, Santos LMNBF. Vaporization of protic ionic liquids derived from organic superbases and short carboxylic acids. Phys Chem Chem Phys 2017. [DOI: 10.1039/c7cp02023f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Evaluation of the phase behavior and cohesive energy of DBN/DBU and carboxylic acid based protic ionic liquids (PILs).
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Affiliation(s)
- Filipe M. S. Ribeiro
- CIQUP
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
| | - Carlos F. R. A. C. Lima
- CIQUP
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
| | - Inês C. M. Vaz
- CIQUP
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
| | - Ana S. M. C. Rodrigues
- CIQUP
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
| | - Erlin Sapei
- Department of Biotechnology and Chemical Technology
- School of Chemical Technology
- Aalto University
- Aalto
- Finland
| | - André Melo
- LAQV-REQUIMTE
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
| | | | - Luís M. N. B. F. Santos
- CIQUP
- Departamento de Química e Bioquímica
- Faculdade de Ciências da Universidade do Porto
- Porto
- Portugal
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18
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Reid JESJ, Agapito F, Bernardes CES, Martins F, Walker AJ, Shimizu S, Minas da Piedade ME. Structure–property relationships in protic ionic liquids: a thermochemical study. Phys Chem Chem Phys 2017; 19:19928-19936. [DOI: 10.1039/c7cp02230a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
How does cation functionality influence the strength of intermolecular interactions in protic ionic liquids (PILs)? Quantifying the energetics of PILs can be an invaluable tool to answer this fundamental question.
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Affiliation(s)
- Joshua E. S. J. Reid
- York Structural Biology Laboratory
- Department of Chemistry
- University of York
- Heslington
- York
| | - Filipe Agapito
- Centro de Química e Bioquímica e Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
- Portugal
| | - Carlos E. S. Bernardes
- Centro de Química e Bioquímica e Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
- Portugal
| | - Filomena Martins
- Centro de Química e Bioquímica e Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
- Portugal
| | | | - Seishi Shimizu
- York Structural Biology Laboratory
- Department of Chemistry
- University of York
- Heslington
- York
| | - Manuel E. Minas da Piedade
- Centro de Química e Bioquímica e Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
- Portugal
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19
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Ahmad W, Ostonen A, Jakobsson K, Uusi-Kyyny P, Alopaeus V, Hyväkkö U, King AW. Feasibility of thermal separation in recycling of the distillable ionic liquid [DBNH][OAc] in cellulose fiber production. Chem Eng Res Des 2016. [DOI: 10.1016/j.cherd.2016.08.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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