Porous electrospun ultrafine fibers via a liquid–liquid phase separation method

This communication reported a new simple method to produce porous ultrafine fibers during electrospinning process. It was named liquid–liquid phase separation method. This method required introducing suitable amount of water into electrospun solution to form similar stable three-phase membrane-formi...

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Veröffentlicht in:Colloid and polymer science 2013-05, Vol.291 (5), p.1293-1296
Hauptverfasser: Wei, Zhimei, Zhang, Quanchao, Wang, Lihua, Wang, Xiaojun, Long, Shengru, Yang, Jie
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container_end_page 1296
container_issue 5
container_start_page 1293
container_title Colloid and polymer science
container_volume 291
creator Wei, Zhimei
Zhang, Quanchao
Wang, Lihua
Wang, Xiaojun
Long, Shengru
Yang, Jie
description This communication reported a new simple method to produce porous ultrafine fibers during electrospinning process. It was named liquid–liquid phase separation method. This method required introducing suitable amount of water into electrospun solution to form similar stable three-phase membrane-forming systems previously. Scanning electron microscopy was employed to evaluate the morphology of porous ultrafine fibers. According to the investigation result, porous ultrafine fibers were prepared by this method. Liquid–liquid phase separation caused by the change of the property of three-phase systems of charged jet that was led by the rapid solvent evaporation during electrospinning process was considered as the key role for the formation of porous structure. This method is very simple and it not only lowers the requirement on the solvents but also does not introduce any new component into the fibers. Therefore, this method provides a new simple way to form porous structure during electrospinning process.
doi_str_mv 10.1007/s00396-012-2858-9
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subjects Applied sciences
Characterization and Evaluation of Materials
Charging
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Exact sciences and technology
Fibers and threads
Food Science
Forms of application and semi-finished materials
Nanotechnology and Microengineering
Physical Chemistry
Polymer industry, paints, wood
Polymer Sciences
Short Communication
Soft and Granular Matter
Technology of polymers
title Porous electrospun ultrafine fibers via a liquid–liquid phase separation method
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