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Facile Synthesis of Hollow Core-Porous Shell Structure Polyacrylonitrile (PAN) Microfibers Using a Simple Microfluidic System
- Authors
- Song, Minyung; Cho, Sung-rheb; Chang, Suk Tai
- Issue Date
- Jun-2013
- Publisher
- CHEMICAL SOC JAPAN
- Citation
- CHEMISTRY LETTERS, v.42, no.6, pp 577 - 579
- Pages
- 3
- Journal Title
- CHEMISTRY LETTERS
- Volume
- 42
- Number
- 6
- Start Page
- 577
- End Page
- 579
- ISSN
- 0366-7022
1348-0715
- Abstract
- Hollow core polyacrylonitrile (PAN) microfibers with nano- and microporosity are synthesized based on the regeneration of PAN from dimethyl sulfoxide in a hydrodynamic flow-focusing microfluidic device. This technique is a fast and one-step approach to fabricate such core-shell microfibers. The fiber size (20-45 mu m) and the nanopore size (90-300 nm) are well controllable by simply changing core-sheath flow rate and PAN concentration.
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