title: Comparison and Characterisation of Regenerated Chitosan from 1-Butyl-3-methylimidazolium Chloride and Chitosan from Crab Shells.
abstract: Chitosan is a biopolymer derived from chitin which is naturally occurring in the exoskeleton of crustaceans. This paper reports dissolution and regeneration of chitosan by directly dissolving in an ionic liquid solvent, 1-butyl-3-methylimidazolium chloride (BMIMCl). This will provide an ideal platform to solubilise these kinds of polymers to achieve the dissolution. The current study dissolved chitosan from crab shell utilising BMIMCl as a solvent and characterised the resultant regenerated polymer. The regenerated chitosan showed increased hydrogen bonding when characterised by Fourier transform infrared (FTIR) spectral analysis. In addition, the study also compared the characteristics of regenerated and generic chitosan. The regenerated chitosan was also evaluated for antimicrobial properties and showed to possess antibacterial features similar to the commercial grade. This method can be utilised in future for blending of polymers with chitosan in a dissolved phase.
authors.affiliation: Centre for Advanced Materials and Performance Textiles, RMIT University, Melbourne, VIC 3056, Australia.
authors.forename: Saniyat
authors.identifier: 0000-0003-1898-2455
authors.initials: S
authors.lastname: Islam
authors.affiliation: Centre for Advanced Materials and Performance Textiles, RMIT University, Melbourne, VIC 3056, Australia.
authors.forename: Lyndon
authors.initials: L
authors.lastname: Arnold
authors.affiliation: Centre for Advanced Materials and Performance Textiles, RMIT University, Melbourne, VIC 3056, Australia.
authors.forename: Rajiv
authors.identifier: 0000-0002-9726-8075
authors.initials: R
authors.lastname: Padhye
mesh_terms: D000818:Animals; D002482:Cellulose / Q000737:chemistry; D002686:Chitin / Q000737:chemistry; D048271:Chitosan / Q000138:chemical synthesis / Q000737:chemistry*; D003445:Crustacea / Q000737:chemistry; D006860:Hydrogen Bonding; D007093:Imidazoles / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D007093:Imidazoles; D011108:Polymers; D002686:Chitin; C502841:1-butyl-3-methylimidazolium chloride; D002482:Cellulose; D048271:Chitosan