Water-Resistant Poly(Vinyl Alcohol) Hybrid Nanofibers Incorporating Polyhedral Oligosilsesquioxane (POSS)

Abstract:

We have explored a straightforward approach for achieving water-resistant properties of the electrospun PVA nanofibers. The electrospun PVA nanofibers are post-treated with a hydrophobic polyhedral oligosilsesquioxane (POSS) hybrid macromer via a direct urethane reaction between the hydroxyl group of PVA and the isocyanate group of POSS macromers. The POSS-modified PVA nanofibers are characterized by fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and water resistant property. The morphologies of the electrospun PVA nanofibers before and after POSS post-treatments are regular and a narrow distribution of diameters was observed, indicating a uniform post-treatment of POSS macromers onto the PVA nanofibers. Thermal decomposition behavior of the POSS-modified PVA nanofibers was altered compared to the pure PVA nanofibers, suggesting the suppression of thermal decomposition due to the incorporation of POSS macromers. In addition, the pure PVA nanofiber mats immersed in pure water exhibited no characteristic morphology, whereas the POSS-modified PVA nanofiber mats showed the texture morphology, indicating an enhanced water-resistant property.

• Periodical: Advanced Materials Research (Volumes 89-91)
• Pages: 727-732
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.89-91.727
• Online since: January 2010
• Authors: Byoung Suhk Kim, Hyo Kyoung Kang, Myung Seob Khil, Hak Yong Kim, Ick Soo Kim
• Keywords: Electro-Spinning, Hybrid Nanofiber, Poly(vinyl alcohol), Polyhedral Oligosilsesquioxane (POSS), Water Resistance

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