4.7 Article

A two step method for the preparation of carbamate cross-linked cellulose films using an ionic liquid and their water retention properties

期刊

CARBOHYDRATE POLYMERS
卷 154, 期 -, 页码 8-12

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.08.033

关键词

Cellulose; Cellulose-carbamate; 1-n-Butyl-3-methylimidazolium chloride; Thin-film; Water retention

资金

  1. NSF [CBET-0929970, CBET-1336469, HRD1036593]
  2. USDA grant [CBG-2010-38821-21569]
  3. Direct For Education and Human Resources
  4. Division Of Human Resource Development [1036593] Funding Source: National Science Foundation

向作者/读者索取更多资源

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. (C) 2016 Elsevier Ltd. All rights reserved.

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