Abstract
AbstractAn improvement of ecological conscience currently has increased the consciousness of researchers in reducing the processing time and cost of solvent for the dissolution of cellulose. Latterly, ionic liquids have been employed to process cellulose as they are recyclable and nonvolatile. Besides that, biopolymers such as chitosan, chitin, starch, protein, and cellulose acetate can also be processed by using ionic liquids for diverse applications. In this short review, examples of imidazolium-based ionic liquids that are commonly used for the dissolution of cellulose are implied. Furthermore, examples of organic liquids that are utilized as co-solvents for ionic liquids were revealed. In addition, examples of imidazolium-based ionic liquid/co-solvent mixtures utilized in the dissolution of cellulose and other biopolymers are also demonstrated. The properties and applications of cellulose and its blends regenerated from different types of cellulose/imidazolium-based ionic liquid/co-solvent solutions are also shortly reviewed. The information acquired from this review gives a better understanding of the changes in the properties of regenerated cellulose and regenerated cellulose blends. In addition, this short review serves as a model basis for the creation of novel applications of regenerated cellulose and regenerated cellulose blends by utilizing imidazolium-based ionic liquid/co-solvent mixtures.
Highlights
The use of ionic liquids in the processing of biopolymers has been widespread due to the environmental awareness and development of the numerous ionic liquid industries
It can be seen that ionic liquids based on allyl, butyl, diallyl, and ethyl-methylimidazolium cations with chloride, acetate, or diethylphosphate counter anions are frequently applied, and this suggests that the combination of the cations and anions is significantly effective for the dissolution of cellulose
Examples of imidazolium-based ionic liquid/co-solvent mixtures, coagulation agents, as well as isolation, dissolution, and regeneration processes of cellulose were shortly reviewed in this article
Summary
The use of ionic liquids in the processing of biopolymers has been widespread due to the environmental awareness and development of the numerous ionic liquid industries. The application of ionic liquids for the processing of cellulose is a positive approach because they can be recycled. Ionic liquids can dissolve most organic materials, including biopolymers and some inorganic materials [2]. They have excellent solubility with many organic solvents. It can be seen that ionic liquids based on allyl-, butyl-, diallyl-, and ethyl-methylimidazolium cations with chloride, acetate, or diethylphosphate counter anions are frequently applied, and this suggests that the combination of the cations and anions is significantly effective for the dissolution of cellulose. 1-Allyl-3-methylimidazolium chloride 1-Butyl-3-methylimidazolium acetate 1-Butyl-3-methylimidazolium chloride 1,3-Diallyl-2-ethylimidazolium acetate 1-Ethyl-3-methylimidazolium acetate 1-Ethyl-3-methylimidazolium chloride 1-Ethyl-3-methylimidazolium diethylphosphate
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
