Identification of high performance solvents for the sustainable processing of graphene

Salavagione, Horacio J.; Sherwood, James; bruyn, Mario De; Budarin, Vitaliy L.; Ellis, Gary; Clark, James H.; Shuttleworth, Peter S.

doi:10.1039/c7gc00112f

Cited by 162 publications

(145 citation statements)

References 53 publications

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“…The δ d and δ p values obtained for R1 were similar to the reference value for a structural analog called solketal. 39 Each parameter for R1 was higher than that for R2. This difference can be attributed to the different number of oxygen atoms.…”

Section: Resultsmentioning

confidence: 91%

“…Table shows the total HSP (δ R ) and three components: dispersion force (δ d ), polar force (δ p ), and hydrogen‐bonding force (δ hb ), as estimated by the Stefanis‐Panayiotou method. The δ d and δ p values obtained for R1 were similar to the reference value for a structural analog called solketal . Each parameter for R1 was higher than that for R2.…”

Section: Resultsmentioning

confidence: 99%

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Solvent polarity effects on supramolecular chirality of a polyfluorene‐thiophene copolymer

et al. 2018

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This study demonstrates the supramolecular chirality control of a conjugated polymer via solvent polarity. We designed and synthesized a chiral polyfluorene-thiophene copolymer having two different chiral side chains at the 9-position of the fluorene unit. Chiral cyclic and alkyl ethers with different polarities were selected as the chiral side chains. The sign of the circular dichroism spectra in the visible wavelength region was affected by the solvent system, resulting from the change of supramolecular structure. The estimation of the solubility parameter revealed that the solubility difference of the side chains contributed to the change of the circular dichroism sign, which was also observed in spin-coated films prepared from good solvents having different polarities.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Solvent polarity effects on supramolecular chirality of a polyfluorene‐thiophene copolymer

et al. 2018

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“…[23] One of the key features of Cyrene( 2)i si ts high miscibility with water.T his can be explained by the fact that in water Cyrene exists in equilibrium with its hydrate, ketal 23 (Scheme 5). [47,48] In this process, Cyrene acts as an exfoliant and dispersion agent.T he use of Cyrene resulted in an order of magnitude increase in graphene dispersion comparedt oD MF.C yrenew as recently compared to as eries of green solvents for its ability to swell ar ange of resins that are used in solid-phase peptides ynthesis. [44] In related6 ,8-dioxabicyclo[3.2.1]octanone ring systemsi nw hich there is as ubstituent at the b-position, such as alcohol 24 [45] or pyrazole 25, [46] the ketal form can be isolated and characterized.…”

Section: Use Of Cyrene As Abio-available Solventmentioning

confidence: 99%

“…In addition, two groups recentlyr eported the use of Cyrene for the processing of graphene. [47,48] In this process, Cyrene acts as an exfoliant and dispersion agent.T he use of Cyrene resulted in an order of magnitude increase in graphene dispersion comparedt oD MF.C yrenew as recently compared to as eries of green solvents for its ability to swell ar ange of resins that are used in solid-phase peptides ynthesis. It was found to swell the resinsN ovaGel and ChemMatrixt oa ne qual or greater extent than the traditional solvents NMP,D MF,a nd CH 2 Cl 2 .…”

Section: Use Of Cyrene As Abio-available Solventmentioning

confidence: 99%

Bio‐available Solvent Cyrene: Synthesis, Derivatization, and Applications

2018

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The development of green solvents is one of the key tenets of Green Chemistry as solvents account for the majority of waste stemming from the production of the chemicals on which we have all come to rely. An important class of solvents is the dipolar aprotics, which include N,N-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP). In addition to being derived from non-renewable resources, these solvents are also under increased regulatory pressures that will limit their industrial applications. This Concept concerns the bio-available solvent Cyrene (dihydrolevoglucosenone) as a potential replacement for toxic dipolar aprotic solvents. An emphasis is placed on examining the strengths and weaknesses of Cyrene as a solvent and is accomplished by looking at the synthesis, derivatization, and application in synthetic protocols of Cyrene. With respect to the Twelve Principles of Green Chemistry, this Concept describes a bio-available solvent that should have a disruptive effect on the use of traditional industrial dipolar aprotic solvents.

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“…The surface tension is also a fundamental physicochemical parameter in polymer preparation and processing methods. The surface tension also plays a key role in phase behavior, encapsulation, self-stratifying coating and nanodispersion of CNT, graphene, graphene oxide, and other materials [9][10][11][12][13][14][15][16][17][18]. Matching both the solubility parameter and surface tension parameters is essential for achieving better polymer formulations.…”

Section: Introductionmentioning

confidence: 99%

A Relationship Between the Heat of Vaporization, Surface Tension, and the Solubility Parameters, Which Includes the Ratio of the Coordination Numbers, Based on Stefan's Rule

Pereira¹,

Vebber

2018

Polymer Engineering & Sci

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The correct calculi of surface tension and solubility parameters are of paramount importance for many fields of chemical engineering and materials design, such as encapsulation methods (which use the mean field theory), dispersion of nanopowders, phase compatibility in chemical blends and nanocomposites, among others. The solubility parameters play a key role in these applications along with the surface tension. Until now, the relationship between solubility parameters and surface tension was only indirect, through the Skaarup–Beerbower formula, although well‐known physicochemical rules, such as Stefan's rule, could be applied to them directly, as shown in this study. The prediction of both the solubility parameters and surface tension within chemical groups can be obtained with high accuracy using critical temperature and molar volume, parameters easily found in the literature. The proposed rules are original, simple and have direct practical applications for the development of new materials. POLYM. ENG. SCI., 59:E312–E321, 2019. © 2018 Society of Plastics Engineers

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Identification of high performance solvents for the sustainable processing of graphene

Abstract: Combined computational screening and practical assessment of >10 000 solvents for the sustainable liquid exfoliation of graphite to graphene.

Cited by 162 publications

References 53 publications

Solvent polarity effects on supramolecular chirality of a polyfluorene‐thiophene copolymer

Solvent polarity effects on supramolecular chirality of a polyfluorene‐thiophene copolymer

Bio‐available Solvent Cyrene: Synthesis, Derivatization, and Applications

A Relationship Between the Heat of Vaporization, Surface Tension, and the Solubility Parameters, Which Includes the Ratio of the Coordination Numbers, Based on Stefan's Rule

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