Fabrication and characterization of centrifugally spun poly(acrylic acid) nanofibers

Abstract

The production of poly(acrylic acid) (PAA) nanofibers by the centrifugal spinning of PAA solutions in water is reported. The effect of the spinneret rotational speed and concentration of PAA solutions on the diameter of nanofibers and on their quality (assessed by the absence of beads) is discussed. The main physical properties of PAA such as glass‐transition temperature (Tg) are studied in detail and compared to the feature of the as‐received homopolymer. It is shown that the glass‐transition temperature of the bulk PAA and PAA nanofibers (as measured by differential scanning calorimetry) depends on the heating rate according to a Williams–Landel–Ferry‐like equation. Raman spectroscopy data provided additional information about the differences between the as‐received polymer and the nanofibers. Preliminary results on antibacterial properties of the PAA nanofibers are reported. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47480.

Centrifugally spun carbon fibers prepared from aqueous poly(vinylpyrrolidone) solutions as binder‐free anodes in lithium‐ion batteries

“…can be achieved by the addition of fillers in polymer matrices 1 . Due to their high surface area to volume ratio, composite nanofibers have been extensively used in many applications, such as biomedical, filtration, tissue engineering, and energy storage 2–5 . In particular, carbon fibers, and nanofibers prepared by electrospinning and subsequent heat treatment of polymer‐fiber precursors have been widely used in energy storage applications 6 .…”

New Bio‐Based Furanic Materials Effectively Absorb Metals from Water and Exert Antimicrobial Activity

“…Polymer powders with enhanced cation‐exchange properties (AAc/DAF‐10, MAAc/DAF‐10 and MA/S/DAF‐10) were investigated in sterility tests. The absence of bacterial growth in a Petri dish indicated sterility of the polymers obtained in this study, by contrast with some other poly(AAc)‐based copolymers [48] …”

Forcespun polyvinylpyrrolidone/copper and polyethylene oxide/copper composite fibers and their use as antibacterial agents

“…Nano/micro fibers can be prepared by various processing methods such as melt blowing, electrospinning, [24][25][26] centrifugal spinning, [27][28][29][30][31][32][33][34] dry spinning, 35 phase separation, 36 and self-assembly. 37 Centrifugal spinning or forcespinning (FC) has been recently used to produce fibers at a highproduction rate (1 g/min) and low cost 32,33,38 where both conducting and nonconducting solutions/melts can be centrifugally spun into fibers. 29,39 Beyond these features, for an identical solution at ambient conditions, centrifugally spun fibers yield more porous-based shape than electrospun fibers.…”