Electrospun Porous Nanofibers with Imprinted Patterns Induced by Phase Separation of Immiscible Polymer Blends.

Content Provider	Europe PMC
Author	Asano, Narumi Sugihara, Shinji Suye, Shin-ichiro Fujita, Satoshi
Copyright Year	2022
Abstract	Nanofibrous nonwovenfabrics have attracted attention as porousadsorbents with high specific surface areas for the safe and efficienttreatment of spilled organic dyes and petroleum. For this purpose,a method of fabricating porous nanofibers with high specific surfaceareas would be highly beneficial. In this study, the phase separationin nanofibers electrospun from blended solutions of immiscible polymers[poly(styrene) (PS) and poly(vinylpyrrolidone) (PVP)] was investigated.The removal of PVP as a sacrificial polymer afforded the imprintingof mesopores (40–70 nm) in the PS nanofibers. The effects ofsolution composition (PS/PVP in N,N-dimethylformamide) on the structure formation in the fibers wereinvestigated. The nanofibers thus obtained could selectively adsorblow-molecular-weight hydrophobic dyes, such as Nile Red and Oil RedO. Thus, it is expected that the combined approach of electrospinningof immiscible polymer blends and phase separation-induced patterningcan be applied to the fabrication of functional nanofibers for diverseapplications.
Journal	ACS Omega
Volume Number	7
PubMed Central reference number	PMC9202247
Issue Number	23
PubMed reference number	35721947
e-ISSN	24701343
DOI	10.1021/acsomega.2c01798
Language	English
Publisher	American Chemical Society
Publisher Date	2022-06-02
Access Restriction	Open
Rights License	Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). © 2022 The Authors. Published by American Chemical Society
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering