The evolution behavior and dissolution mechanism of cellulose in aqueous   solvent

doi:10.1016/j.molliq.2017.06.103

CORC > 北京大学 > 化学与分子工程学院

	The evolution behavior and dissolution mechanism of cellulose in aqueous solvent
	Peng, Huafeng ; Dai, Guoliang ; Wang, Shaopeng ; Xu, Hongyao
刊名	JOURNAL OF MOLECULAR LIQUIDS
	2017
关键词	Cellulose Aqueous solvent Dissolution Theory model Evolution behavior FREE-FLOATING COTTON REGENERATED CELLULOSE IONIC LIQUIDS WOOD FIBERS CHLORIDE CHITIN OXIDE
DOI	10.1016/j.molliq.2017.06.103
英文摘要	The dissolution evolution behavior and dissolution mechanism of cellulose in N-methylmorpholine-N-oxide (NMMO)/H2O solution, atypical aqueous solvent, were investigated. The dissolution evolution behaviors and hypothesis were characterized by polarizing microscope (POM) and Wide-angle X-ray diffraction (WAXD). Results showed that the concentration of the solvent penetrating into the native cellulose increases gradually, special swelling dissolution of different cellulose fibers is caused by the inconsistency of the structure and or composition of the fibers. The dissolving process of cellulose with the structure of amorphous regions co-existing with crystalline regions is that the solvent penetrates in the amorphous regions and weak regions where the structure is loose, causing the crystalline regions of compact structure gradual dispersing from outer to inner by the chain disentanglement of these regions, and further developed the model for the dissolving evolution behaviors of polymer with the structure of amorphous co-existing with crystalline regions and the solvent penetrating model for the swelling dissolution of cellulose fiber. (C) 2017 Elsevier B.V. All rights reserved.; Natural Science Foundation of China [21471030]; SCI(E); ARTICLE; 959-966; 241
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471229]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Peng, Huafeng,Dai, Guoliang,Wang, Shaopeng,et al. The evolution behavior and dissolution mechanism of cellulose in aqueous solvent[J]. JOURNAL OF MOLECULAR LIQUIDS,2017.
APA	Peng, Huafeng,Dai, Guoliang,Wang, Shaopeng,&Xu, Hongyao.(2017).The evolution behavior and dissolution mechanism of cellulose in aqueous solvent.JOURNAL OF MOLECULAR LIQUIDS.
MLA	Peng, Huafeng,et al."The evolution behavior and dissolution mechanism of cellulose in aqueous solvent".JOURNAL OF MOLECULAR LIQUIDS (2017).