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Measuring size-dependent mechanical properties of electrospun polystyrene fibers using in-situ AFM-SEM

Published online by Cambridge University Press:  12 January 2012

Russell J. Bailey ,
Beatriz Cortes-Ballesteros ,
Hao Zhang ,
Congwei Wang  and
Asa H. Barber
Russell J. Bailey
Affiliation:
Department of Materials, School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
Beatriz Cortes-Ballesteros
Affiliation:
Department of Materials, School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
Hao Zhang
Affiliation:
Department of Materials, School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
Congwei Wang
Affiliation:
Department of Materials, School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
Asa H. Barber
Affiliation:
Department of Materials, School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
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Abstract

The mechanical properties of individual electrospun polystyrene fibers with sub-micron diameters were measured using a combination of atomic force microscopy (AFM) and scanning electron microscopy (SEM). The strain to failure of the electrospun fibers was observed to increase as the fiber diameter decreased. This size dependent mechanical behavior in individual electrospun polystyrene fibers indicates a suppression of localized failure and a shift away from crazing that is dominant in bulk samples.

Keywords

polymerscanning probe microscopy (SPM)fiber
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1424: Symposium SS – Properties and Processes at the Nanoscale Nanomechanics of Material Behavior , 2012 , mrsf11-1424-ss03-04
Copyright
Copyright © Materials Research Society 2012

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References

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