Application of ionic liquids for dissolving cellulose and fabricating cellulose-based materials: state of the art and future trends

Zhang, Jinming; Wu, Jin; Yu, Jian; Zhang, Xiaoyu; He, Jiasong; Zhang, Jun

doi:10.1039/c6qm00348f

Cited by 341 publications

(232 citation statements)

References 278 publications

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“…ILs have been proven to be promising nonderivatizing solvents for dissolving cellulose by breaking hydrogen bonds between cellulose strands and reforming hydrogen bonds with cellulose . Intensive studies have shown that ILs consisting of imidazolium‐based cation and alkylphosphate‐based anions are one of the most efficient ILs for dissolving cellulose due to strong hydrogen bond basicity and lower viscosity . Reaching equilibrium solubility for dissolved cellulose in ionic liquids can take several days; however, it is still instructive to examine the ability of the various ionic liquids in this study to dissolve cellulose.…”

Section: Resultscontrasting

confidence: 87%

“…36 Intensive studies have shown that ILs consisting of imidazolium-based cation and alkylphosphate-based anions are one of the most efficient ILs for dissolving cellulose due to strong hydrogen bond basicity and lower viscosity. 37,38 Reaching equilibrium solubility for dissolved cellulose in ionic liquids can take several days; however, it is still instructive to examine the ability of the various ionic liquids in this study to dissolve cellulose. Even if the values are limited by kinetics, the amount of ionic liquid required to dissolve cellulose can be used to determine the ILs suitability as a solvent for processing applications.…”

Section: Dissolution Capacity Of Ionic Liquids For Cellulosementioning

confidence: 99%

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Dissolution capacity and rheology of cellulose in ionic liquids composed of imidazolium cation and phosphate anions

Zheng

Harris

Bhatia

et al. 2019

Polymers for Advanced Techs

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Cellulose is one of the most abundant natural polymer sources, but the applications of cellulose are limited due to difficulty in dissolving cellulose in water and common chemical solvents. In the past decades, ionic liquids have been studied to dissolve cellulose efficiently, sustainably, and in an eco‐friendly manner. In this study, a series of imidazolium‐based ionic liquids were synthesized to explore as solvents for cellulose, including 1,3‐dimethylimidazolium dimethylphosphate ([mmim]dmp), 1‐ethyl‐3‐methylimidazolium dimethylphosphate ([emim]dmp), 1‐butyl‐3‐methylimidazolium dimethylphosphate ([bmim]dmp), 1‐hexyl‐3‐methylimidazolium dimethylphosphate ([hmim]dmp), 1‐ethyl‐3‐methylimidazolium diethylphosphate ([emim]dep), 1,3‐diethylimidazolium diethylphosphate ([eeim]dep), and 1‐butyl‐3‐ethylimidazolium diethylphosphate ([beim]dep). Rheology experiments were conducted to study the flow behavior of cellulose in these ionic liquids and cosolvents. We found that the dissolution capacity of cellulose increases with decreasing viscosity of the solvent and that the rheological properties depend most strongly on the concentration of cellulose dissolved. Systems composed of cellulose in [mmim]dmp, [emim]dmp, and [emim]dep behave as viscoelastic gels, while formulations of cellulose in [bmim]dmp, [hmim]dmp, [eeim]dep, and [beim]dep show viscoelastic liquid behavior. These results will impact development of new solvents for processing of cellulose‐based polymeric materials.

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Section: Resultscontrasting

confidence: 87%

Section: Dissolution Capacity Of Ionic Liquids For Cellulosementioning

confidence: 99%

Dissolution capacity and rheology of cellulose in ionic liquids composed of imidazolium cation and phosphate anions

Zheng

Harris

Bhatia

et al. 2019

Polymers for Advanced Techs

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“…In the case of lithium-ion batteries, the use of cellulose as the gel polymer electrolyte has already been reported [45]. Our membranes were obtained by the casting techniques described in detail elsewhere [46]. Microcrystalline cellulose (MCC) was dissolved in the same IL/DMSO mixed solution as for the preparation of composite electrodes.…”

Section: Methodsmentioning

confidence: 99%

Electrodes and hydrogel electrolytes based on cellulose: fabrication and characterization as EDLC components

Kasprzak

Stępniak

Galiński

2018

J Solid State Electrochem

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In the present work, the cellulose-based materials were manufactured and used as components of electrochemical double layer capacitors (EDLCs). The preparation method of cellulose membranes as well as composite electrodes containing cellulose as a binder was presented. These materials were prepared using for the first time ionic liquid/dimethyl sulfoxide (IL/DMSO) mixture solvent. Obtained components displayed a uniform structure, thermal stability, and good electrochemical properties. The electrochemical performances of these materials were studied in 2-electrode EDLC cells by common electrochemical techniques as cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS). The composite electrodes were investigated in three types of electrolytes: aqueous, organic, and ionic liquids. The cellulose membranes were, however, soaked in an aqueous electrolyte and tested as hydrogel polymer electrolytes. All investigated materials show high efficiency in terms of specific capacity. The studied cellulose-based capacitors exhibited specific capacitance values in the range of 20-22 F g −1 , depending on the type of applied electrolyte.

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“…This article is part of a Special Issue on 'IUPAB Edinburgh Congress' edited by Damien Hall (v) Penetrate, create pores, and destroy biomembranes (Benedetto et al 2014b, Bhattacharya et al 2017, Evans 2008, Yoo et al 2014, b, Wang et al 2015a, b, 2016Drücker et al 2017; and (vi) Dissolve cellulose and other complex polysaccharides (Youngs et al 2011, Zhang et al 2017, Cheng et al 2011, Liu et al 2010.…”

Section: Introductionmentioning

confidence: 99%

Room-temperature ionic liquids meet bio-membranes: the state-of-the-art

Benedetto

2017

Biophys Rev

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Room-temperature ionic liquids (RTIL) are a new class of organic salts whose melting temperature falls below the conventional limit of 100°C. Their low vapor pressure, moreover, has made these ionic compounds the solvents of choice of the so-called green chemistry. For these and other peculiar characteristics, they are increasingly used in industrial applications. However, studies of their interaction with living organisms have highlighted mild to severe health hazards. Since their cytotoxicity shows a positive correlation with their lipophilicity, several chemical-physical studies of their interactions with biomembranes have been carried out in the last few years, aiming to identify the molecular mechanisms behind their toxicity. Cation chain length and anion nature of RTILs have seemed to affect lipophilicity and, in turn, their toxicity. However, the emerging picture raises new questions, points to the need to assess toxicity on a case-by-case basis, but also suggests a potential positive role of RTILs in pharmacology, bio-medicine and bio-nanotechnology. Here, we review this new subject of research, and comment on the future and the potential importance of this emerging field of study.

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Application of ionic liquids for dissolving cellulose and fabricating cellulose-based materials: state of the art and future trends

Abstract: Herein, this review article aims to provide a relatively comprehensive summary of research progress in the dissolution and processing of cellulose with ionic liquids.

Cited by 341 publications

References 278 publications

Dissolution capacity and rheology of cellulose in ionic liquids composed of imidazolium cation and phosphate anions

Dissolution capacity and rheology of cellulose in ionic liquids composed of imidazolium cation and phosphate anions

Electrodes and hydrogel electrolytes based on cellulose: fabrication and characterization as EDLC components

Room-temperature ionic liquids meet bio-membranes: the state-of-the-art

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