Dual effects of dimethylsulfoxide on cellulose solvating ability of 1-allyl-3-methylimidazolium chloride

Zhang, Chao; Kang, Hongliang; Li, Pingping; Liu, Zhijing; Zhang, Yijin; Liu, Ruigang; Xiang, Junfeng; Huang, Yong

doi:10.1007/s10570-016-0876-3

Cited by 25 publications

(17 citation statements)

References 50 publications

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Section: Introductionmentioning

confidence: 99%

“…IL co-solvent mixtures have shown that co-solvents can increase the cellulose dissolution, creating a co-solvent concentration that maximizes the dissolvable amount of cellulose [13]. In pure ILs, the cation and anion are typically located close to each other due to the attractive Coulombic forces [12][13][14]. The co-solvent can surround both the cation and anion, further separating the cation and anion, which allows them to act individually and in sequence during the cellulose separation process [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…In pure ILs, the cation and anion are typically located close to each other due to the attractive Coulombic forces [12][13][14]. The co-solvent can surround both the cation and anion, further separating the cation and anion, which allows them to act individually and in sequence during the cellulose separation process [12][13][14]. Additionally, the co-solvent reduces viscosity and increases the diffusion of all the molecules in the solvent [1,[12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…The co-solvent can surround both the cation and anion, further separating the cation and anion, which allows them to act individually and in sequence during the cellulose separation process [12][13][14]. Additionally, the co-solvent reduces viscosity and increases the diffusion of all the molecules in the solvent [1,[12][13][14][15]. The decline of cellulose solubility at higher co-solvent concentrations is attributed to the loss in hydrogen bonding between the IL and the cellulose bundle (i.e., mostly the anion), which is also investigated in this study [13].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the co-solvent reduces viscosity and increases the diffusion of all the molecules in the solvent [1,[12][13][14][15]. The decline of cellulose solubility at higher co-solvent concentrations is attributed to the loss in hydrogen bonding between the IL and the cellulose bundle (i.e., mostly the anion), which is also investigated in this study [13]. The degree of cellulose dissolution can significantly vary when changing the IL or co-solvent.…”

Section: Introductionmentioning

confidence: 99%

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Insight into Cellulose Dissolution with the Tetrabutylphosphonium Chloride–Water Mixture using Molecular Dynamics Simulations

Crawford¹,

Ismail²

2020

Polymers

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All-atom molecular dynamics simulations are utilized to determine the properties and mechanisms of cellulose dissolution using the ionic liquid tetrabutylphosphonium chloride (TBPCl)–water mixture, from 63.1 to 100 mol % water. The hydrogen bonding between small and large cellulose bundles with 18 and 88 strands, respectively, is compared for all concentrations. The Cl, TBP, and water enable cellulose dissolution by working together to form a cooperative mechanism capable of separating the cellulose strands from the bundle. The chloride anions initiate the cellulose breakup, and water assists in delaying the cellulose strand reformation; the TBP cation then more permanently separates the cellulose strands from the bundle. The chloride anion provides a net negative pairwise energy, offsetting the net positive pairwise energy of the peeling cellulose strand. The TBP–peeling cellulose strand has a uniquely favorable and potentially net negative pairwise energy contribution in the TBPCl–water solution, which may partially explain why it is capable of dissolving cellulose at moderate temperatures and high water concentrations. The cellulose dissolution declines rapidly with increasing water concentration as hydrogen bond lifetimes of the chloride–cellulose hydroxyl hydrogens fall below the cellulose’s largest intra-strand hydrogen bonding lifetime.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Insight into Cellulose Dissolution with the Tetrabutylphosphonium Chloride–Water Mixture using Molecular Dynamics Simulations

Crawford¹,

Ismail²

2020

Polymers

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Direct Induction of Porous Graphene from Mechanically Strong and Waterproof Biopaper for On‐Chip Multifunctional Flexible Electronics

Zhao

Zhang

Yang

et al. 2023

Small

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Graphene with a 3D porous structure is directly laser‐induced on lignocellulosic biopaper under ambient conditions and is further explored for multifunctional biomass‐based flexible electronics. The mechanically strong, flexible, and waterproof biopaper is fabricated by surface‐functionalizing cellulose with lignin‐based epoxy acrylate (LBEA). This composite biopaper shows as high as a threefold increase in tensile strength and excellent waterproofing compared with pure cellulose one. Direct laser writing (DLW) rapidly induces porous graphene from the biopaper in a single step. The porous graphene shows an interconnected carbon network, well‐defined graphene domains, and high electrical conductivity (e.g., ≈3 Ω per square), which can be tuned by lignin precursors and loadings as well as lasing conditions. The biopaper in situ embedded with porous graphene is facilely fabricated into flexible electronics for on‐chip and paper‐based applications. The biopaper‐based electronic devices, including the all‐solid‐state planer supercapacitor, electrochemical and strain biosensors, and Joule heater, show great performances. This study demonstrates the facile, versatile, and low‐cost fabrication of multifunctional graphene‐based electronics from lignocellulose‐based biopaper.

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On the dissolution of cellulose in tetrabutylammonium acetate/dimethyl sulfoxide: a frustrated solvent

Idström¹,

Gentile

Gubitosi

et al. 2017

Cellulose

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We have found that the dissolution of cellulose in the binary mixed solvent tetrabutylammonium acetate/dimethyl sulfoxide follows a previously overlooked near-stoichiometric relationship such that one dissolved acetate ion is able to dissolve an amount of cellulose corresponding to about one glucose residue. The structure and dynamics of the resulting cellulose solutions were investigated using small-angle X-ray scattering (SAXS) and nuclear magnetic resonance techniques as well as molecular dynamics simulation. This yielded a detailed picture of the dissolution mechanism in which acetate ions form hydrogen bonds to cellulose and causes a diffuse solvation sheath of bulky tetrabutylammonium counterions to form. In turn, this leads to a steric repulsion that helps to keep the cellulose chains apart. Structural similarities to previously investigated cellulose solutions in aqueous tetrabutylammonium hydroxide were revealed by SAXS measurement. To what extent this corresponds to similarities in dissolution mechanism is discussed.

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Dual effects of dimethylsulfoxide on cellulose solvating ability of 1-allyl-3-methylimidazolium chloride

Cited by 25 publications

References 50 publications

Insight into Cellulose Dissolution with the Tetrabutylphosphonium Chloride–Water Mixture using Molecular Dynamics Simulations

Insight into Cellulose Dissolution with the Tetrabutylphosphonium Chloride–Water Mixture using Molecular Dynamics Simulations

Direct Induction of Porous Graphene from Mechanically Strong and Waterproof Biopaper for On‐Chip Multifunctional Flexible Electronics

On the dissolution of cellulose in tetrabutylammonium acetate/dimethyl sulfoxide: a frustrated solvent

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