Modifying the thermomechanical properties of electrospun fibres of poly‑vinyl cinnamate by photo‑cross‑linking

Singh, U., Mohan, S., Davis, F. ORCID: https://orcid.org/0000-0003-0462-872X and Mitchell, G. (2019) Modifying the thermomechanical properties of electrospun fibres of poly‑vinyl cinnamate by photo‑cross‑linking. SN Applied Sciences. ISSN 2523-3971 doi: 10.1007/s42452-018-0033-8

Abstract/Summary

We explore the effects of cross-linking on some thermal and mechanical properties of polymer nanofibers of poly-vinyl cinnamate which were electro-spun from 1,2 dichloroethane. Scanning electron microscopy performed on the fibres revealed smooth fibres which were devoid of beading or ribbon-type features. When cross-linked, the Young’s moduli and glass transition temperatures of the fibres increase, owing to the formation of new covalent bonds which leads to higher overall binding energies. The glass transition temperatures increased by 20 K after 1 h of photo-polymerization while the Young’s modulus increased by 50% for the same exposure time. The glass transition temperatures as well as the heats of enthalpy indicate that a significant portion of cross-linking occurs within the first 10 min of exposure.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/80422
Identification Number/DOI	10.1007/s42452-018-0033-8
Refereed	Yes
Divisions	Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) > Electron Microscopy Laboratory (CAF)
Publisher	Springer
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