Rheological behaviors of cellulose in 1-ethyl-3-methylimidazolium chloride/dimethylsulfoxide

doi:10.1016/j.carbpol.2014.03.091

CORC > 化学研究所 > 中国科学院化学研究所

	Rheological behaviors of cellulose in 1-ethyl-3-methylimidazolium chloride/dimethylsulfoxide
	Wang, Lejun 2; Gao, Lei 3; Cheng, Bowen 3; Ji, Xiujie 1,3; Song, Jun 1,3; Lu, Fei 4
刊名	CARBOHYDRATE POLYMERS
	2014-09-22
卷号	110 页码:292-297
关键词	Cellulose Ionic Liquid/dmso Rheology Scaling Predictions Entanglement
ISSN号	0144-8617
DOI	10.1016/j.carbpol.2014.03.091
英文摘要	Dynamic rheological behaviors of alpha-cellulose 1-ethyl-3-methylimidazolium chloride ([Emim]Cl)/dimethylsulfoxide (DMSO) solutions were investigated in a large range of cellulose concentrations (0.1-10 wt%) at 25 degrees C. The overlap concentration c* and the entanglement concentration c(e) for cellulose in [Emim]Cl/DMSO were determined to be 0.5 wt% and 2.0 wt% respectively, and the exponents of the specific viscosity eta(sp) versus cellulose concentration c were determined as 1.1, 2.1 and 4.7 for dilute, semidilute unentangled and entangled regimes respectively, which were in accordance with the scaling prediction for neutral polymer in theta solvent. Under the same cellulose concentration, the complex viscosity eta*, the reptation time tau(rep) and the relaxation time of a segment between entanglements tau(e) all decreased with increasing DMSO content in the solvent, while the number of entanglements of cellulose chains and the molar mass of an entanglement strand M-e both remained unchanged. (C) 2014 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000338005000038
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/50631]
专题	中国科学院化学研究所
通讯作者	Cheng, Bowen
作者单位	1.Tianjin Polytech Univ, Coll Mat Sci & Engn, Tianjin 300387, Peoples R China 2.Tianjin Polytech Univ, Coll Text, Tianjin 300387, Peoples R China 3.Tianjin Polytech Univ, State Key Lab Hollow Fiber Membrane Mat & Proc, Tianjin 300387, Peoples R China 4.Inst Chem, Beijing Natl Lab Mol Sci, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lejun,Gao, Lei,Cheng, Bowen,et al. Rheological behaviors of cellulose in 1-ethyl-3-methylimidazolium chloride/dimethylsulfoxide[J]. CARBOHYDRATE POLYMERS,2014,110:292-297.
APA	Wang, Lejun,Gao, Lei,Cheng, Bowen,Ji, Xiujie,Song, Jun,&Lu, Fei.(2014).Rheological behaviors of cellulose in 1-ethyl-3-methylimidazolium chloride/dimethylsulfoxide.CARBOHYDRATE POLYMERS,110,292-297.
MLA	Wang, Lejun,et al."Rheological behaviors of cellulose in 1-ethyl-3-methylimidazolium chloride/dimethylsulfoxide".CARBOHYDRATE POLYMERS 110(2014):292-297.