Effect of Antisolvent Used to Regenerate Cellulose Treated with Ionic Liquid on Its Properties

Marta Błoch; Magdalena Woźniak; Krzysztof Dwiecki; Sławomir Borysiak; Izabela Ratajczak

doi:10.3390/molecules29174227

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Tytuł

Effect of Antisolvent Used to Regenerate Cellulose Treated with Ionic Liquid on Its Properties

Autorzy

Marta Błoch
Magdalena Woźniak
Krzysztof Dwiecki
Sławomir Borysiak (WTCH) ^{[ 1 ][ 7.6 ][ P ]}
Izabela Ratajczak

^{[ 1 ]} Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | ^{[ P ]} pracownik

Dyscyplina naukowa (Ustawa 2.0)

[7.6] Nauki chemiczne

Rok publikacji

2024

Opublikowano w

Molecules

Rocznik: 2024 | Tom: vol. 29 | Numer: iss. 17

Typ artykułu

artykuł naukowy

Język publikacji

angielski

Słowa kluczowe

EN

solvolysis
1-ethyl-3-methylimidazolium acetate
crystallinity
nanocellulose

Streszczenie

EN The solvolysis reaction with ionic liquids is one of the most frequently used methods for producing nanometer-sized cellulose. In this study, the nanocellulose was obtained by reacting microcrystalline cellulose with 1-ethyl-3-methylimidazolium acetate (EmimOAc). The aim of this research was to determine the influence of various antisolvents used in the regeneration of cellulose after treatment with ionic liquid on its properties. The following antisolvents were used in this research: acetone, acetonitrile, water, ethanol and a mixture of acetone and water in a 1:1 v/v ratio. The nanocellulose was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), dynamic light scattering (DLS), scanning electron microscopy (SEM) and elemental analysis (EA). The results show that the antisolvent used to regenerate cellulose after the solvolysis reaction with EmimOAc affects its properties. Water, ethanol and a mixture of acetone and water successfully removed the used ionic liquid from the cellulose structure, while acetone and acetonitrile were unable to completely remove EmimOAc from the cellulosic material. The results of the XRD analysis indicate that there is a correlation between the ionic liquid content in the regenerated cellulose and its degree of crystallinity. Among the tested solvents, water leads to the effective removal of EmimOAc from the cellulose structure, which is additionally characterized by the smallest particle size and non-formation of agglomerates.

Data udostępnienia online

06.09.2024

Strony (od-do)

4227-1 - 4227-11

DOI

10.3390/molecules29174227

URL

https://www.mdpi.com/1420-3049/29/17/4227

Uwagi

Article number: 4227

Typ licencji

CC BY (uznanie autorstwa)