ICCAS OpenIR
Electrospinning of native cellulose from nonvolatile solvent system
Xu, Shanshan1; Zhang, Jun2; He, Aihua1; Li, Junxing1; Zhang, Hao2; Han, Charles C.1
2008-06-10
Source PublicationPOLYMER
ISSN0032-3861
Volume49Issue:12Pages:2911-2917
AbstractImproving and understanding the electrospinnability of native cellulose in room temperature ionic liquids (RTIL) have been a hot issue in recent years. In this study, the electrospinning of cellulose in a highly efficient RTIL of I-allyl-3-methylimidazolium chloride (AMIMCI) was investigated. The introduction of co-solvent dimethyl sulfoxide (DMSO), which significantly decreased the surface tension, viscosity and entanglement density of the network and increased the conductivity of the spinning dope, contributed to a continuous jet. The problems lying in nonvolatility and the high ionic strength of the RTIL, which unavoidably led to the standing up vertically, adhesion and contractions of the wet fibers during the electrospinning process, were successfully resolved using a rotating copper-wire drum as a collector and solidifying the jet under high relative humidity. The water vapor played an important role in leading to "skin formation" which helped to stabilize the fibrous morphology, and finally smooth ultra-thin regenerated cellulose fibers were obtained. The combination of solvent system and collecting apparatus and conditions provided not only an effective method of producing ultra-thin native cellulose fibers on a large scale, but also a fundamental solution to other electrospinning systems with high ionic strength and nonvolatility. Measurements on WAXD and FT-Raman indicated that the electrospun cellulose fibers were almost amorphous with a little crystallization presented the polymorph of Type-II, which was totally different from the native cellulose with the dominated polymorph of Type-I. (C) 2008 Elsevier Ltd. All rights reserved.
KeywordCellulose Electrospinning Ionic Liquid
DOI10.1016/j.polymer.2008.04.046
Indexed BySCI
Language英语
WOS IDWOS:000257042500018
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:118[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63296
Collection中国科学院化学研究所
Corresponding AuthorHe, Aihua
Affiliation1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Joint Lab Polymer Sci & Mat,State Key Lab Polymer, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Joint Lab Polymer Sci & Mat,Key Lab Engn Plast, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xu, Shanshan,Zhang, Jun,He, Aihua,et al. Electrospinning of native cellulose from nonvolatile solvent system[J]. POLYMER,2008,49(12):2911-2917.
APA Xu, Shanshan,Zhang, Jun,He, Aihua,Li, Junxing,Zhang, Hao,&Han, Charles C..(2008).Electrospinning of native cellulose from nonvolatile solvent system.POLYMER,49(12),2911-2917.
MLA Xu, Shanshan,et al."Electrospinning of native cellulose from nonvolatile solvent system".POLYMER 49.12(2008):2911-2917.
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