𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Application of 1-Allyl-3-(1-butyl)imidazolium Chloride in the Synthesis of Cellulose Esters: Properties of the Ionic Liquid, and Comparison with Other Solvents

✍ Scribed by Ludmila C. Fidale; Shirley Possidonio; Omar A. El Seoud

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
342 KB
Volume
9
Category
Article
ISSN
1616-5187

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The ionic liquid (IL), 1‐allyl‐3‐(1‐butyl)imidazolium chloride (AlBuImCl), has been synthesized and its properties determined. Increase in the temperature increased its conductivity and decreased its density, polarity, and viscosity. Microcrystalline cellulose (MCC), dissolves in this IL by heating at 80 °C; this did not affect its degree of polymerization, decreased its index of crystallinity (Ic), and changed in morphology after regeneration. Convenient acylation of MCC was achieved by using 50% excess anhydride at 80 °C, for 24 or 48 h for acetic and butyric anhydride, respectively. The composition of the mixed esters depended on the initial ratio of the anhydrides, and their order of addition.

magnified image

📜 SIMILAR VOLUMES

Efficient Homogeneous Chemical Modificat
Efficient Homogeneous Chemical Modification of Bacterial Cellulose in the Ionic Liquid 1-N-Butyl-3-methylimidazolium Chloride
✍ Kerstin Schlufter; Hans-Peter Schmauder; Susann Dorn; Thomas Heinze 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 161 KB

## Abstract **Summary:** Bacterial cellulose (BC), a unique type of cellulose, with high degree of polymerization of 6 500 could be dissolved easily in the ionic liquid 1‐__N__‐butyl‐3‐methylimidazolium chloride. For the first time, well‐soluble BC acetates and carbanilates of high degree of substi