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Synthesis of Cellulose Methylcarbonate in Ionic Liquids using Dimethylcarbonate
Author(s) -
Labafzadeh Sara R.,
Helminen K. Juhani,
Kilpeläinen Ilkka,
King Alistair W. T.
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201402794
Subject(s) - ionic liquid , cellulose , chemistry , electrolyte , cellulose acetate , reagent , dimethyl carbonate , green chemistry , diethyl carbonate , organic chemistry , inorganic chemistry , catalysis , ethylene carbonate , electrode
Abstract Dialkylcarbonates are viewed as low‐cost, low‐toxicity reagents, finding application in many areas of green chemistry. Homogeneous alkoxycarbonylation of cellulose was accomplished by applying dialkycarbonates (dimethyl and diethyl carbonate) in the ionic liquid‐electrolyte trioctylphosphonium acetate ([P 8881 ][OAc])/DMSO or 1‐ethyl‐3‐methylimidazolium acetate ([emim][OAc]). Cellulose dialkylcarbonates with a moderate degree of substitution (DS∼1) are accessible via this procedure and cellulose methylcarbonate was thoroughly characterized for its chemical and physical properties after regeneration. This included HSQC & HMBC NMR, ATR‐IR, molecular weight distribution, morphology, thermal properties, and barrier properties after film formation.