微晶纤维素在Bola型咪唑基有机硅离子液体中的溶解性能  

Dissolubility of Microcrystalline Cellulose in Bola-Imidazolium Based Silicone Ionic Liquids

作　　者：谭景林[1] 涂艳艳 熊琴 陈浩[1] Jinglin Tan;Yanyan Tu;Qin Xiong;Hao Chen(School of Chemical and Environmental Engineering, Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang 332000, Chin)

机构地区：[1]九江学院化学与环境工程学院江西省生态化工工程技术研究中心,江西九江33200

出　　处：《高分子材料科学与工程》2018年第6期65-68,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21563016)

摘　　要：研究了微晶纤维素在Bola型咪唑基有机硅离子液体中的溶解性能。通过偏光显微镜、傅里叶变换红外光谱、X射线衍射、扫描电子显微镜和热重分析对再生前后微晶纤维素进行了表征。结果表明,Bola型咪唑基有机硅离子液体对微晶纤维素有较好的溶解能力,且不发生其他衍生化反应。微晶纤维素开始热降解温度为320℃,而再生微晶纤维素开始热降解温度为234℃,这是再生微晶纤维素发生了晶型的变化而导致其热稳定性有所下降。The dissolution of microcrystalline cellulose in Bola-imidazolium based silicone ionic liquids was investigated. The both original microcrystalline cellulose and regenerated microcrystalline cellulose from Bola-imidazolium based silicone ionic liquids were characterized by polarizing microscope（ POM）,Fourier transform infrared spectroscopy（ FTIR）,X-ray diffraction（ XRD）,scanning electron microscope（ SEM） and thermogravimetry（ TGA）. The results show that the Bola-imidazolium based silicone ionic liquids can dissolve microcrystalline cellulose effectively. The decomposed temperature of regenerated microcrystalline cellulose is 234 ℃ and decreased in comparison with decomposed temperature（ 320 ℃） of microcrystalline cellulose,caused by changing of their crystal type.

关 键 词：微晶纤维素 有机硅 离子液体 溶解 

分 类 号：O636.11[理学—高分子化学]