Highly thermally resistant, hydrophobic poly(vinyl alcohol)–silica hybrid nanofibers

Main Article Content

Mustafa Hulusi Ugur
Burcu Oktay
Atilla Gungor
Nilhan Kayaman-Apohan

Abstract

In this paper, the preparation of hydrophobic and crosslinked poly­(vinyl alcohol)/silica organic–inorganic hybrid nanofibers via the sol–gel elec­trospinning method is reported. Silica was produced through the acetic acid catalyzed reaction of a silica precursor consisting of dimethyldimethoxysilane (DMDMOS), methyltrimethoxysilane (MTMS), tridecafluoro-1,1,2,2-tetrahydrooctyltriethoxysilane (FAS1313; Dynasylan® F 8261) and phenyltrimethoxy­sil­ane (PTMS; Dynasylan® 9165) in a 2-propanol–water mixture. Hybrid nano­fibers were obtained by electrospinning the silica precursor and an aqueous PVA sol­ution. Chemical, structural, thermal and surface analyses were con­ducted by Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy/energy-dispersive X-ray (SEM/EDX) and water contact angle (WCA) methods, respectively. The obtained hybrid nanofibers were ins­ol­uble in aqueous solution. SEM images displayed that highly cross-linked and porous structures were obtained and the average fiber diameters of poly(vinyl alcohol) (PVA)/silica nanocomposites were around 70 nm. A nano­fiber surface with a water contact angle of 130° was achieved. 

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How to Cite
[1]
M. H. Ugur, B. Oktay, A. Gungor, and N. Kayaman-Apohan, “Highly thermally resistant, hydrophobic poly(vinyl alcohol)–silica hybrid nanofibers”, J. Serb. Chem. Soc., vol. 83, no. 7-8, pp. 885–897, Aug. 2018.
Section
Polymers

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