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Crosslinked PVAL nanofibers with enhanced long-term stability prepared by single-step electrospinning
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-5850-8873
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
2013 (English)In: Polymers for Advanced Technologies, ISSN 1042-7147, E-ISSN 1099-1581, Vol. 24, no 4, 421-429 p.Article in journal (Refereed) Published
Abstract [en]

We present a single-step route for the preparation of crosslinked poly(vinyl alcohol) (PVAL) nanofibers where a conventional electrospinning setup can be used. The simple crosslinking chemistry and the fast and easily applicable technique is an important step towards large-scale production. In contrast to conventional systems, the PVAL crosslinker solution exhibited no increase in viscosity during storage and can therefore be used even after long shelf-times before electrospinning. In addition, the crosslinked nanofibrous mats exhibited a gel content of almost 100%, indicating complete crosslinking; they did not dissolve in water, and no PVAL was found in the aqueous extract. The E-moduli of the nanofibrous mats before and after water immersion could be measured by an intermodulation atomic force microscopy technique. A denser nanofibrous texture with enhanced mechanical properties can be observed after long-term water immersion.

Place, publisher, year, edition, pages
2013. Vol. 24, no 4, 421-429 p.
Keyword [en]
electrospinning, polyvinyl alcohol, crosslinking, single step, AFM
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-120529DOI: 10.1002/pat.3098ISI: 000316282200009Scopus ID: 2-s2.0-84875053245OAI: oai:DiVA.org:kth-120529DiVA: diva2:615630
Funder
EU, European Research Council, 246776
Note

QC 20130411

Available from: 2013-04-11 Created: 2013-04-11 Last updated: 2017-12-06Bibliographically approved

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Odelius, Karin

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