Specific structure, morphology, and properties of polyacrylonitrile (PAN) membranes prepared by needleless electrospinning; Forming hollow fibers
Jazyk angličtina Země Nizozemsko Médium print-electronic
Typ dokumentu časopisecké články
PubMed
31546397
DOI
10.1016/j.msec.2019.110151
PII: S0928-4931(19)32293-3
Knihovny.cz E-zdroje
- Klíčová slova
- Electrospun nanofibers, Hollow fibers, Needleless electrospinning, Polyacrylonitrile,
- MeSH
- akrylové pryskyřice chemie MeSH
- difrakce rentgenového záření MeSH
- elektrody MeSH
- membrány umělé * MeSH
- molekulární modely MeSH
- nanovlákna chemie ultrastruktura MeSH
- permeabilita MeSH
- tkáňové inženýrství metody MeSH
- vzduch MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- akrylové pryskyřice MeSH
- membrány umělé * MeSH
- polyacrylonitrile MeSH Prohlížeč
Polyacrylonitrile (PAN) membranes have been prepared using needleless electrospinning with wire electrode and characterized by a series of methods HRSEM, XRD, air permeability and area weight measurements in dependence of high voltage and electrode distance. HRSEM analysis revealed the tendency to longitudinal rolling of strip-shaped PAN fibers forming hollow fibers. Combination of XRD analysis and molecular modeling explains this phenomenon as the consequence of the specific crystal structure of PAN fibers, where the isotactic PAN chains are arranged in layers forming belt shaped nanofibers with the strong tendency to roll up longitudinally forming hollow fibers. This effect offers the possibility to create hollow nanofibers by electrospinning with the appropriate choice of structure of polymer chains.
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