文献类型：期刊文献

英文题名：Homogeneous synthesis of cellulose stearates with different degrees of substitution in ionic liquid 1-butyl-3-methylimidazolium chloride

作者：Huang, Kun[1,2] Xia, Jianling[1,2] Li, Mei[1] Lian, Jianwei[1] Yang, Xiaohua[1] Lin, Guifu[1]

第一作者：Huang, Kun

通信作者：Xia, JL[1]|[a00056ccf71e40731d22a]夏建陵;

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]State Forestry Adm, Key Open Lab Forest Chem Engn, Nanjing 210042, Jiangsu, Peoples R China

年份：2011

卷号：83

期号：4

起止页码：1631-1635

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20105213527383);Scopus(收录号：2-s2.0-78650521537);WOS:【SCI-EXPANDED(收录号:WOS:000286965400028)】；

基金：The authors thank the National Natural Science Fund of China (No. 30771691) for financial support.

语种：英文

外文关键词：Cellulose stearate; Acylation; Ionic liquids; 1-Butyl-3-methylimidazolium chloride; DSC; TG

摘要：Cellulose stearates with different degrees of substitution (DS) were prepared homogeneously in ionic liquid 1-butyl-3-methylimidazolium chloride ([C(4)mim]Cl-+(-)) solution. Cellulose stearates with DS values of 2.15, 2.19 and 2.57 exhibited good solubility in nonpolar organic solvents. It was indicated by differential scanning calorimetry (DSC) that the melting temperatures of the three cellulose stearates ranged from 38.66 to 56.63 degrees C. Thermogravimetric (TG) analysis showed that the commencing degradation temperature of the three cellulose stearates were 300 degrees C, 325 degrees C and 370 degrees C, respectively. The cellulose stearate with the DS value of 2.57 has better thermal stability than cellulose. (C) 2010 Elsevier Ltd. All rights reserved.