Preparation of Water-Absorbing Polyacrylonitrile Nanofibrous Membrane

✍ Scribed by Haiqing Liu; You-Lo Hsieh

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 150 KB
• Volume: 27
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200500691

✦ Synopsis

Abstract

Summary: Hydrophilic acrylic nanofibers were prepared from alkaline hydrolysis of hydrophobic polyacrylonitrile (PAN) nanofibers. Water contact angle, pore volume, and liquid retention capacity of PAN nanofibrous membranes were measured to determine their dependence on hydrolysis parameters such as base concentration, temperature, and time. Vertical water retention capacity of hydrolyzed PAN nanofibrous membrane could reach as large as 200 times of that of original membrane.

Fiber twinning in post‐hydrolyzed PAN nanofibrous membrane.

imageFiber twinning in post‐hydrolyzed PAN nanofibrous membrane.