Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-27T01:41:08.713Z Has data issue: false hasContentIssue false
  • English
  • Français

Measuring the glass-transition temperature in electrospun polyvinyl alcohol fibers using AFM nanomechanical bending tests

Published online by Cambridge University Press:  31 January 2011

Wei Wang  and
Asa H. Barber
Wei Wang
Affiliation:
[email protected], Queen Mary University of London, Centre for Materials Research & School of Engineering and Materials Science, London, United Kingdom
Asa H. Barber
Affiliation:
[email protected], Queen Mary University of London, Centre for Materials Research & School of Engineering and Materials Science, London, United Kingdom
Get access

Abstract

The glass transition of individual electrospun PVA fibers was found using an AFM fiber bending technique within a heated chamber. A considerably loss in the measured elastic modulus was observed with temperature when the glass transition temperature was reached. The glass transition temperature was observed to decrease as the electrospun PVA fiber diameter decreased, indicating diameter dependent enhanced polymer chain mobility.

Keywords

polymernanoscalefiber
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1185: Symposium II – Probing Mechanics at Nanoscale Dimensions , 2009 , 1185-II10-01
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Li, D., Xia, Y., Adv. Mater. 16 (2004), 1151.10.1002/adma.200400719Google Scholar
2. Fridrikh, S. V., Yu, J. H., Brenner, M. P.; Rutledge, G. C., Phys. Rev. Lett. 90 (2003), 144502.10.1103/PhysRevLett.90.144502Google Scholar
3. Wang, W., Bushby, A. J., Barber, A. H., Appl. Phys. Lett. 93 (2008), 201907.10.1063/1.3033222Google Scholar
4. Sader, J. E., Chon, J. W. M.; Mulvaney, P., Rev. Sci. Instr. 70 (1999), 3967.10.1063/1.1150021Google Scholar
5. Gere, J. M.; Timoshenko, S. P., “Mechanics of Materials.” 4th ed. 1997, Boston, MA: PWS Pub Co. Google Scholar
6. Keddie, J. L., Jones, R. A. L., Cory, R. A., Europhys. Lett. 27 (1994), 59.10.1209/0295-5075/27/1/011Google Scholar
7. Forrest, J. A., Mattsson, J., Phys. Rev. E 61 (2000), R53 10.1103/PhysRevE.61.R53Google Scholar