Green composite films composed of nanocrystalline cellulose and a cellulose matrix regenerated from functionalized ionic liquid solution

Ma, Hao; Zhou, Bo; Li, Hongsheng; Li, Yiqun; Ou, Shiyi

doi:10.1016/j.carbpol.2010.11.050

Cited by 129 publications

(46 citation statements)

References 33 publications

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“…These patterns are typical crystalline domains of this polysaccharide, which are in agreement with the results of previous study [27]. After the regeneration process of the polymer film from the ionic liquid, the regenerated cellulose (RC) films exhibited a diffraction peak at 2θ of 22.5° corresponding to the lattice plane, and no peak appeared at 2θ of 14.9°, which is consistent with a transformation from cellulose I to cellulose II [28]. The CrI (0.82) of MCC decreased to 0.48 for RC-4, indicating that the native crystal structure of cellulose suffers a remarkable decrease in crystallinity as a consequence of dissolving a considerable amount of crystalline cellulose in the ionic liquid.…”

Section: Infrared (Ir) Spectra and X-ray Diffraction Analysessupporting

confidence: 91%

Bilayer-Structured Regenerated Cellulose/Chitosan Films Prepared with Ionic Liquid

Tanjung

Arifin²,

Abdullah

et al. 2017

Indones. J. Chem.

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Section: Infrared (Ir) Spectra and X-ray Diffraction Analysessupporting

confidence: 91%

Bilayer-Structured Regenerated Cellulose/Chitosan Films Prepared with Ionic Liquid

Tanjung

Arifin²,

Abdullah

et al. 2017

Indones. J. Chem.

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“…It was demonstrated that cellulose can be dissolved at concentrations up to 25% (w/w) in imidazolium-based ILs with chloride anions. Since then, a number of ILs have been found to be able to dissolve cellulose [50][51][52][53][54]. The most studied cations for cellulose dissolution are based on the imidazolium, pyridinium and pyrrolidinium cores, with allyl-, ethyl-, or butyl-side chains, and the most promising anions, apart from chloride, are acetate, formate, and alkylphosphate.…”

Section: Mechanism Of Cellulose Dissolutionmentioning

confidence: 99%

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

et al. 2017

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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.

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“…Mechanical and thermal performances of cellulosic materials are considered promising and competitives with conventional plastics so that they are regaining interest as renewable resources to replace petroleum-based polymers (Delhom et al, 2010;Ma et al, 2011;Nishino et al, 2004). Therefore, actual application of cellulose reduces either the consumption of fossil resources or protects the environment.…”

Section: Cellulosementioning

confidence: 99%

Halloysite ‐Based Bionanocomposites

Lazzara

Massaro

Milioto

et al. 2017

Handbook of Composites From Renewable Materials

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Scientific research has been invigorated by a new class of biodegradable materials as alternatives to polymers derived from fossils. Such biomaterials can also offer economic advantages because they are derived from renewable resources. Several biopolymers (gelatin, chitin, chitosan, starch, pectin, cellulose and its modified versions, etc.) have been exploited to produce films and formulations. Their use is limited because of fast degradation, predominant hydrophilic character, and, in some cases, unsatisfactory mechanical properties. However, the properties of these polymers can be improved by using inorganic fillers such as additives. Halloysite nanotube is a promising green filler for this purpose.

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Green composite films composed of nanocrystalline cellulose and a cellulose matrix regenerated from functionalized ionic liquid solution

Cited by 129 publications

References 33 publications

Bilayer-Structured Regenerated Cellulose/Chitosan Films Prepared with Ionic Liquid

Bilayer-Structured Regenerated Cellulose/Chitosan Films Prepared with Ionic Liquid

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

Halloysite ‐Based Bionanocomposites

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