Ionic liquid assisted nanocellulose production from microcrystalline cellulose: Correlation between cellulose solubility and nanocellulose yield via COSMO-RS prediction

Haron, Gamal Abdalla Suliman; Mahmood, Hamayoun; Noh, Mohd Hilmi; Moniruzzaman, Muhammad

doi:10.1016/j.molliq.2022.120591

Cited by 8 publications

(1 citation statement)

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“…IL treatment is highly optimized for cellulosic hydrolysis for the isolation of nanoparticles. 94 For CNCs extraction purposes, imidazolium-based acidic ILs, such as 1-ethyl-3-methylimidazolium diethyl phosphonate ([EMIM]DEP), 1-butyl-3-methylimidazolium chloride ([BMIM]Cl), 1-butyl-3-methylimidazolium acetate ([BMIM]OAc) and 1-butyl-3-methylimidazolium hydrogen sulfate ([BMIM]HSO 4 ), are exclusively used as solvents. Imidazolium ILs involve the selective dissolution of amorphous zones while conserving the native conformation of cellulose type I. Mao et al developed a two-step hydrolysis approach using [BMIM]HSO 4 in which MCC is allowed to swell at room temperature, followed by hydrolyzing it at 100 °C for about 12 h. This procedure yields a high CNCs content of up to 76% along with good surface properties of CNCs.…”

Section: Overview Of Cellulose and Its Nanodimensional Characteristicsmentioning

confidence: 99%

Recent advances in cellulose nanocrystals-based sensors: a review

Singh,

Bhardwaj,

Tiwari

et al. 2024

Mater. Adv.

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Section: Overview Of Cellulose and Its Nanodimensional Characteristicsmentioning

confidence: 99%

Recent advances in cellulose nanocrystals-based sensors: a review

Singh,

Bhardwaj,

Tiwari

et al. 2024

Mater. Adv.

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Fabrication and characterization of 3D printable nanocomposite filament based on cellulose nanocrystals and polylactic acid using ionic liquids

Haron,

Mahmood,

Noh

et al. 2023

J of Applied Polymer Sci

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Nanocellulose, which is biodegradable and possesses excellent physicochemical properties, has high potential in many applications. However, its intrinsic hydrophilic nature makes it difficult to be used as fillers in most hydrophobic polymer composites. Here, cellulose nanocrystals (CNCs) were successfully prepared using 1‐hexly‐3‐methylimidazolium hydrogen sulfate [Hmim][HSO4] ionic liquid under optimized conditions at 71°C, ultra‐sonication amplitude of 69%, and ultrasonication time of 23 min. The prepared CNCs were surface‐modified using 1‐butyl‐3‐methylimidazolium tetrafluoroborate [Bmim][BF4]. A 3D printable nanocomposite filament containing CNCs embedded in polylactic acid was fabricated via extrusion process at 170°C. The prepared filaments were characterized using universal testing machine, field emission scanning electron microscopy, thermogravimetric analysis, and FTIR. It was shown that CNCs had a diameter and length of 10–24 and 60–400 nm, respectively. It was also found that incorporating 2 wt% of CNCs into the matrix phase increased filaments tensile strength by 2.5% (from 54.59 to 57.35 MPa) due to the plasticization effect of [Bmim][BF4]. The prepared composites exhibited lower activation energies compared to neat PLA due to the small traces of sulfate group on F‐CNC. The mechanical attributes of CNCs/PLA nanocomposites were retained at values comparable to that of fresh PLA and were demonstrated to be 3D printable.

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