摘要
本论文着重论述了纤维素在均相体系中的接枝共聚研究进展,分析了纤维素在Li Cl/DMAc、碱/尿素以及离子液体等溶剂体系下的溶解机理,进而重点介绍了纤维素在各溶剂体系中的均相接枝共聚反应机理和反应效果。分析发现,纤维素在离子液体中具有更高的接枝率,在Li Cl/DMAc体系中的接枝温度明显高于在其它溶剂体系中的接枝温度,在Li Cl/DMAc和离子液体体系中的接枝时间要低于其它溶剂体系。以上分析对于纤维素的功能化改性具有一定的借鉴意义和参考价值。
The present paper focused on the research progress of graft copolymerization of cellulose in homogeneous system. The dissolution mechanisms of cellulose in Li Cl / DMAc,alkali / urea,and ionic liquid solvent were analyzed. Then the homogeneous graft copolymerization reaction mechanism and reaction effects of cellulose in the above solvent system were mainly introduced. It could be concluded that cellulose has higher grafting ratio in ionic liquid,higher grafting temperature in Li Cl / DMAc,and shorter grafting time in Li Cl / DMAc and ionic liquid. The above analyses have certain reference significance and reference value for the functionalization modification of cellulose.
出处
《造纸科学与技术》
2016年第1期33-37,42,共6页
Paper Science & Technology
基金
山东省高等学校科技计划项目(No.J15LC03)
曲阜师范大学实验室开放基金项目(No.sk201412)
国家自然科学基金资助项目(No.21176131)
关键词
纤维素
溶解
均相接枝共聚
cellulose
dissolution
homogeneous graft copolymerization
