离子液体对纤维素溶解性能综合实验设计  

Comprehensive experimental design based on dissolution of cellulose in ionic liquid

作　　者：王雁南[1] 李维尊[1] 孙红文[1] 展思辉[1] WANG Yannan;LI Weizun;SUN Hongwen;ZHAN Sihui(College of Environmental Science and Engineering,Nankai University,Tianjin 300350,China)

机构地区：[1]南开大学环境科学与工程学院,天津300350

出　　处：《实验技术与管理》2021年第8期42-45,共4页Experimental Technology and Management

基　　金：国家自然科学基金青年科学基金项目(51708301);南开大学自制实验教学仪器项目(20NKZZYQ14);天津市教学成果奖培育项目(PYGJ-20)。

摘　　要：将科学研究与本科实验教学相结合作为实验教学改革的重要手段之一,对教学水平的提升与学生的综合素质培养十分有效。基于离子液体可以溶解与再生纤维素的特性以及对再生纤维素和再生离子液体的表征,设计了一种综合研究型实验。该实验考察了离子液体在不同温度下对纤维素的溶解特性以及通过X射线衍射仪、傅里叶变换红外光谱、扫描电子显微镜等仪器对原料以及产物进行表征对比分析溶解特点。通过该综合实验,可以加强学生对离子液体这一新型绿色特性溶剂的认识以及对资源化的理解,锻炼学生的综合实践能力。The combination of scientific research and undergraduate experimental teaching is one of the important means of experimental teaching reform,which is very effective for the improvement of teaching level and the cultivation of students’comprehensive quality.Based on the properties of cellulose dissolved in ionic liquid and the characterization of regenerated cellulose and regenerated ionic liquid,a comprehensive research experiment is designed.In this experiment,the dissolution of cellulose in ionic liquid at different temperatures and the characterization of raw materials and products by X-ray diffraction,Fourier transform infrared spectroscopy and other instruments are investigated.Through the comprehensive experiment,the students'understanding of ionic liquid,i.e.,a new type of green solvent and resource utilization can be strengthened,and their comprehensive practical ability can be trained.

关 键 词：离子液体 纤维素 溶解性 综合性实验 

分 类 号：O636.11[理学—高分子化学]