Physical stabilisation of electrospun poly(vinyl alcohol) nanofibres: comparative study on methanol and heat-based crosslinking

Miraftab, Mohsen ORCID: 0000-0002-6333-3852, Saifullah, Abu Naser and Çay, Ahmet (2015) Physical stabilisation of electrospun poly(vinyl alcohol) nanofibres: comparative study on methanol and heat-based crosslinking. Journal of Material Science, 50 (4). pp. 1943-1957. ISSN 0022-2461

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Methanol crosslinking and heat-treatment methods for physical crosslinking of electrospun poly(vinyl alcohol) (PVA) nanofibres were investigated to assess their stability in water. For this purpose, PVAs with low and high molecular weights were selected. Morphology of the crosslinked membranes was characterised by scanning electron microscopy. Crystallinity of the resultant crosslinked fibres were analysed by FT-IR and differential scanning calorimetry. It has been shown that physical crosslinking increases the crystallinity of the fibres. High molecular weight PVA nanofibres showed better stability and better preservation of nanofibrous structure. Stability of the crosslinked membranes was also tested by immersion into water at room temperature and boiling water. Combined methanol and heat treatments at different temperatures and exposure periods were also investigated. Treatment at 180°C HMW PVA nanofibres for longer durations exhibited best results in terms of water stability, although it exhibited somewhat lower swelling ratios as compared to those subjected to only methanol treatment.

Item Type: Article
Additional Information: Full text of this article is not available in this repository. This article was originally published by Springer.
Uncontrolled Keywords: Antimicrobial agents; Bacteria; Biological materials; Biomaterials; Functional polymers; Materials; Microorganisms; Natural polymers; Strength of materials; Textiles Anti-microbial activity; Fibrous material; Gelling properties; Medical textiles; Methicillin-resistant staphylococcus aureus; Polymer formation; strength; Wound dressings; Silver
Subjects: T Technology > T Technology (General)
Divisions: University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Sarah Taylor
Date Deposited: 24 Nov 2015 14:29
Last Modified: 08 Mar 2018 10:13
Identification Number: 10.1007/s10853-014-8759-1

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