Mele_Paper_Rev_.pdf (1.93 MB)
0/0

Phase separation events induce the coexistence of distinct nanofeatures in electrospun fibres of poly(ethyl cyanoacrylate) and polycaprolactone

Download (1.93 MB)
journal contribution
posted on 19.06.2018 by Wanwei Zhang, Elisa Mele
© 2018 Elsevier Ltd Here we show that thermodynamic instabilities during electrospinning of polymer blends of poly(ethyl cyanoacrylate) (PECA) and polycaprolactone (PCL) in a ternary solvent system (acetone/chloroform/acetonitrile) induce the formation of hierarchical composite fibres with dual porosity. The analysis of the surface and cross-section of the PECA-PCL fibres reveals that, differently from previous works, the electrospun fibres are formed of two distinct morphologies: half of the fibre exhibits parallel and elongated grooves; whereas the other half has near-circular shaped pores. Porosity is present throughout the fibre volume with some regions being hollow. The occurrence of this novel architecture is investigated using different solvent systems and a dual phase separation mechanism is proposed. Porous fibres with a hierarchical porous structure are beneficial in many fields, including biomedical, environmental and energy related applications.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Materials Today Communications

Volume

16

Pages

135 - 141

Citation

ZHANG, W. and MELE, E., 2018. Phase separation events induce the coexistence of distinct nanofeatures in electrospun fibres of poly(ethyl cyanoacrylate) and polycaprolactone. Materials Today Communications, 16, pp. 135-141.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2018

Notes

This paper was accepted for publication in the journal Materials Today Communications and the definitive published version is available at https://doi.org/10.1016/j.mtcomm.2018.05.005

ISSN

2352-4928

eISSN

2352-4928

Language

en

Exports

Logo branding

Exports