Ionic Liquids and Paper

Przybysz, Piotr; Drzewińska, E.; Stanislawska, Anna; Wysocka-Robak, Agnieszka; Cieniecka‐Rosłonkiewicz, Anna; and, Joanna Foksowicz-Flaczyk; Pernak, Juliusz

doi:10.1021/ie0402315

Cited by 38 publications

(26 citation statements)

References 27 publications

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“…More details about the method of production can be found in a previous paper [20]. Further information about the pure components used in this work, experimental densities, refractive indices and water contents, along with values published by other authors [21][22][23][24] are shown in table 1.…”

Section: Methodsmentioning

confidence: 99%

Solvent extraction of thiophene from n-alkanes (C7, C12, and C16) using the ionic liquid [C8mim][BF4]

Alonso

Arce

Francisco

et al. 2008

The Journal of Chemical Thermodynamics

151

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Section: Methodsmentioning

confidence: 99%

Solvent extraction of thiophene from n-alkanes (C7, C12, and C16) using the ionic liquid [C8mim][BF4]

Alonso

Arce

Francisco

et al. 2008

The Journal of Chemical Thermodynamics

151

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“…This decrease in paper strength was attributed to the weakening of hydrogen bonding between the biopolymer chains as a result of the corresponding (competitive) interaction with the ILs. 102 The rates of cellulase-catalyzed hydrolysis of microcrystalline cellulose, dissolved in [C 4 MeIm][Cl], were between 52 and 55 times faster than that of the untreated sample. 103 All of these results show that cellulose interacts appreciably with ILs, even at room temperature.…”

Section: Il-assisted Solubilization Of Carbohydratesmentioning

confidence: 99%

Applications of Ionic Liquids in Carbohydrate Chemistry: A Window of Opportunities

et al. 2007

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Ionic liquids (ILs) are composed only of ions. Of special interest to this review are those where at least one ion (the cation) is organic and whose melting points are below or not far above room temperature. ILs are designated as "green" solvents because they have extremely low vapor pressure, are non-inflammable, and thermally and chemically stable. Therefore, many of them can be, in principle, recycled into the process indefinitely. The objective of the present review is to discuss different aspects of the use of ILs in carbohydrate chemistry, in particular, dissolution and functionalization of simple sugars, cyclodextrins, cellulose, starch, and chitin/chitosan. The molecular structure and synthesis of ILs most frequently employed in carbohydrate chemistry are discussed with an emphasis on imidazolium and pyridinium cations with different counterions. The physicochemical properties of ILs that are relevant to the dissolution and functionalization of carbohydrates, in particular their polarities and hydrogen-bonding abilities, are discussed. Dissolution of simple saccharides and biopolymers in ILs is presented with an emphasis on the mechanism of carbohydrate--IL interactions. Finally, the very interesting novel applications of the solutions obtained are addressed. These include, inter alia, spinning of the dissolved biopolymer into fibers, extrusion into slabs and rods, formation of matrixes for a myriad of substrates, including biomacromolecules, formation of nanocomposites, and functionalization to produce important derivatives. The use of ILs in many branches of science is expanding fast; it is hoped that this review will draw the attention of researchers to the "window of opportunities" that these green solvents open into carbohydrate chemistry.

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“…In recent years, attention has been paid to chemical compounds generally known as ionic liquids (ILs), many of which show promising properties with the potential for use in the paper industry [6]. These are chemically, electrochemically and thermally stable compounds, which do not decompose at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Application of Ionic Liquids in Paper Properties and Preservation

Koziróg¹,

Wysocka-Robak²

2017

Progress and Developments in Ionic Liquids

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For centuries, paper has been an important medium of information. Currently, the basic risk to the paper collection is "acidic paper" and the action of enzymes secreted by microorganisms on them. In order to 'prolong life' of these materials, in recent years, various chemical compounds have been used. In this chapter, ionic liquids (IL) are explored as substances for deacidification of paper and its conservation, including antifungal activity. The use of these substances in the manufacturing of paper is possible, but the ingredients play an important role. Imidazolium IL cause an increase in the pH (deacidification) of historical papers and do not cause worsening of their strength properties, but these compound can cause a colour change. Benzalkonium DLlactate and didecyldimethylammonium DL-lactate and derivatives of 1,2,4-triazole are used as effective inhibitors of growth of moulds on paper. The best antifungal activity in these ionic liquids is observed in the paper pine at a concentration of 5% and weakest in the samples from the pulp after chemical-thermomechanical treatment. New paper impregnated with ionic liquids is characterised by an increase in tear resistance, reduction of breaking length and a favourable influence on the paper colour.

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Ionic Liquids and Paper

Cited by 38 publications

References 27 publications

Solvent extraction of thiophene from n-alkanes (C7, C12, and C16) using the ionic liquid [C8mim][BF4]

Solvent extraction of thiophene from n-alkanes (C7, C12, and C16) using the ionic liquid [C8mim][BF4]

Applications of Ionic Liquids in Carbohydrate Chemistry: A Window of Opportunities

Application of Ionic Liquids in Paper Properties and Preservation

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