title: A two step method for the preparation of carbamate cross-linked cellulose films using an ionic liquid and their water retention properties.
abstract: Carbamate cross-linked cellulose films can be prepared in a two step method using cellulose dissolved in 1-n-butyl-3-methylimidazolium chloride ionic liquid. The new technique involves casting the film from cellulose ionic liquid solution onto a glass surface and application of alkyl/aryl diisocyanate in dry dimethylsulfoxide solution onto the cellulose - ionic liquid coating on glass and allowing the cross-linking reaction to occur on the pre-formed cellulose coating. The carbamate cross-linked cellulose films formed were characterized by FT-IR, and TG-DTA. The water retention values of the films are shown to decrease with the increase in hydrophobicity of the alky/aryl group linker in the carbamate bridges.
authors: Department of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA. Electronic address: asamarasekara@pvamu.edu.
authors: Ananda S
authors: AS
authors: Amarasekara
authors: Department of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA.
authors: Muhammad A
authors: MA
authors: Hasan
authors: Department of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA.
authors: Uyen
authors: U
authors: Ha
mesh_terms: D002219:Carbamates / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry*; D003432:Cross-Linking Reagents / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D014867:Water / Q000737:chemistry
chemical_list: D002219:Carbamates; D003432:Cross-Linking Reagents; D007093:Imidazoles; D052578:Ionic Liquids; D014867:Water; C502841:1-butyl-3-methylimidazolium chloride; D002482:Cellulose
keywords: 1-n-Butyl-3-methylimidazolium chloride; Cellulose; Cellulose-carbamate; Thin-film; Water retention