Effect of methylimidazole on cellulose/ionic liquid solutions and regenerated material therefrom

Olsson, Carina; Hedlund, Artur; Idström, Alexander; Westman, Gunnar

doi:10.1007/s10853-014-8052-3

Cited by 33 publications

(32 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Airgap-and wet spinning of eucalypt dissolving grade pulp in [Emim]OAc and methylimidazole (MIM) was investigated by Olsson et al [208]. Pure [Emim]OAc/cellulose solution was spun at 2.8 m min −1 through 150 µm capillaries.…”

Section: Cellulose Precipitationmentioning

confidence: 99%

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

et al. 2017

View full text Add to dashboard Cite

Abstract:The most frequent polymer on nature is cellulose that is present together with lignin and hemicellulose in vegetal biomass. Cellulose can be, in the future, sustainable raw matter for chemicals, fuels, and materials. Nevertheless, only 0.3% of cellulose is processed nowadays due to the difficulty in dissolving it, and only a small proportion is used for the production of synthetic cellulosic fibers especially esters and other cellulose derivatives, normally in extremely polluting processes. The efficient and clean dissolution of cellulose is a major objective in cellulose research and development. Ionic liquids (ILs) are considered "green" solvents due to their low vapor pressure, that prevents them evaporating into the atmosphere. In addition, these molten salts present advantages in process intensification, leading to more than 70 patents in lignocellulosic biomass in ILs being published since 2005, most of them related to the production of cellulose derived polymers, e.g., acetates, benzoylates, sulfates, fuorates, phthalates, succinates, tritylates, or silylates. In this work, the use of ILs for production of cellulose derived polymers is thoroughly studied. To do so, in the first place, a brief summary of the state of the art in cellulose derivatives production is presented, as well as the main features of ILs in cellulose processing applications. Later, the main results in the production of cellulose derivatives using ILs are presented, followed by an analysis of the industrial viability of the process, considering aspects such as environmental concerns and ILs' recyclability.

show abstract

Section: Cellulose Precipitationmentioning

confidence: 99%

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

et al. 2017

View full text Add to dashboard Cite

show abstract

“…As shown in Fig. 2b, the bulk densities of the aerogels were low, ranging from 0?044 to 0?150 g cm 21 .…”

Section: Resultsmentioning

confidence: 89%

Cellulose aerogels from cellulose–NaOH/PEG solution and comparison with different cellulose contents

Wan

Jiao

et al. 2015

Materials Science and Technology

View full text Add to dashboard Cite

A green mild NaOH/polyethylene glycol solution was employed to dissolve the cellulose extracted from waste wheat straw. Subsequently combined with the freezing−thawing treatment, regeneration process and freeze drying, the cellulose aerogels with different cellulose contents were fabricated at mass ratios of 1∶100, 3∶100, 5∶100 and 7∶100 cellulose to the solution. Moreover, the influences of cellulose contents on the morphologies, crystal structures, crystallinity indexes, thermal stabilities and pore characteristic parameters of the aerogels were investigated by scanning electron microscope, X-ray diffraction, thermogravimetric analysis and nitrogen adsorption. Meanwhile, the oil adsorption properties of the aerogels with different cellulose contents were also surveyed; besides, for improving lipophilicity, the hydrophobic modifications of trimethylchlorosilane for the aerogels were carried out before the adsorption tests.

show abstract

“…[1] Most commonly used ILs are imidazolium-based. [34][35][36][37][38][39][40][41][42][43] Röder ). [34,35] Hermanutz et al showed that [BMIM][Cl] can be used for the realization of spinning dopes that contained up to 16.5 wt% cellulose dopes.…”

Section: Cellulose Fiber Spinning Using Il-technologymentioning

confidence: 99%

Processing of Cellulose Using Ionic Liquids

Hermanutz

Vocht

Panzier

et al. 2018

Macro Materials & Eng

View full text Add to dashboard Cite

The processing of cellulose dissolved in ionic liquids (ILs) enables the development of new materials. Besides the established production of cellulosic fiber products, interesting technical applications are developed like super micro filament fibers, cellulose/chitin blend fibers, precursors for carbon fibers, and all‐cellulose composites. This review provides a detailed summary of these new developments and describes how ILs are selected for the processing of cellulose with a particular emphasis on industrial realization. State‐of‐the‐art spinning processes are reviewed and it is illustrated how uniquely selected ILs can be used not only for established fiber spinning but for the development of new cellulose‐based materials.

show abstract

Effect of methylimidazole on cellulose/ionic liquid solutions and regenerated material therefrom

Cited by 33 publications

References 41 publications

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

Cellulose aerogels from cellulose–NaOH/PEG solution and comparison with different cellulose contents

Processing of Cellulose Using Ionic Liquids

Contact Info

Product

Resources

About