Influence of processing conditions on polymorphic behavior, crystallinity, and morphology of electrospun poly(VInylidene fluoride) nanofibers

Baqeri, Maedeh, Abolhasani, Mohammad Mahdi, Mozdianfard, Mohammad Reza, Guo, Qipeng, Oroumei, Azam and Naebe, Minoo 2015, Influence of processing conditions on polymorphic behavior, crystallinity, and morphology of electrospun poly(VInylidene fluoride) nanofibers, Journal of applied polymer science, vol. 132, no. 30, pp. 1-10, doi: 10.1002/app.42304.

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Title Influence of processing conditions on polymorphic behavior, crystallinity, and morphology of electrospun poly(VInylidene fluoride) nanofibers
Author(s) Baqeri, Maedeh
Abolhasani, Mohammad Mahdi
Mozdianfard, Mohammad Reza
Guo, QipengORCID iD for Guo, Qipeng orcid.org/0000-0001-7113-651X
Oroumei, Azam
Naebe, MinooORCID iD for Naebe, Minoo orcid.org/0000-0002-0607-6327
Journal name Journal of applied polymer science
Volume number 132
Issue number 30
Start page 1
End page 10
Total pages 10
Publisher Wiley
Place of publication London, Eng.
Publication date 2015-08-10
ISSN 0021-8995
1097-4628
Keyword(s) crystallization
electrospinning
morphology
nanostructured polymers
properties and characterization
Summary The polymorphism and crystallinity of poly(vinylidene fluoride) (PVDF) membranes, made from electrospinning of the PVDF in pure N,N-dimethylformamide (DMF) and DMF/acetone mixture solutions are studied. Influence of the processing and solution parameters such as flow rate, applied voltage, solvent system, and mixture ratio, on nanofiber morphology, total crystallinity, and crystal phase content of the nanofibers are investigated using scanning electron microscopy, wide-angle X-ray scattering, differential scanning calorimetric, and Fourier transform infrared spectroscopy. The results show that solutions of 20% w/w PVDF in two solvent systems of DMF and DMF/acetone (with volume ratios of 3/1 and 1/1) are electrospinnable; however, using DMF/acetone volume ratio of 1/3 led to blockage of the needle and spinning process was stopped. Very high fraction of β-phase (∼79%-85%) was obtained for investigated nanofiber, while degree of crystallinity increased to 59% which is quite high due to the strong influence of electrospinning on ordering the microstructure. Interestingly, ultrafine fibers with the diameter of 12 and 15 nm were obtained in this work. Uniform and bead free nanofiber was formed when a certain amount of acetone was added in to the electrospinning solution.
Language eng
DOI 10.1002/app.42304
Field of Research 091209 Polymers and Plastics
Socio Economic Objective 860607 Plastic Products (incl. Construction Materials)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Wiley
Persistent URL http://hdl.handle.net/10536/DRO/DU:30076645

Document type: Journal Article
Collections: Institute for Frontier Materials
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