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Examination of Hard Segment and Soft Segment Phase Separation in Polyurethane Medical Materials by Electron Microscopy Techniques

Published online by Cambridge University Press:  09 December 2005

Jennifer E. Taylor ,
Peter R. Laity ,
Steven S. Wong ,
Keith Norris ,
Peck Khunkamchoo ,
Martin Cable ,
Geoffrey Andrews ,
Anthony F. Johnson  and
Ruth E. Cameron
Jennifer E. Taylor
Affiliation:
Department of Materials Science, University of Cambridge, Cambridge CB2 3QZ, UK
Peter R. Laity
Affiliation:
Department of Materials Science, University of Cambridge, Cambridge CB2 3QZ, UK
Steven S. Wong
Affiliation:
Department of Chemistry, University of Leeds, Leeds LS2 9JT, UK
Keith Norris
Affiliation:
Department of Chemistry, University of Leeds, Leeds LS2 9JT, UK
Peck Khunkamchoo
Affiliation:
Department of Chemistry, University of Leeds, Leeds LS2 9JT, UK
Martin Cable
Affiliation:
Ranier Technology Limited, Greenhouse Park Centre, Cambridge CB1 FAS, UK
Geoffrey Andrews
Affiliation:
Ranier Technology Limited, Greenhouse Park Centre, Cambridge CB1 FAS, UK
Anthony F. Johnson
Affiliation:
Department of Chemistry, University of Leeds, Leeds LS2 9JT, UK
Ruth E. Cameron
Affiliation:
Department of Materials Science, University of Cambridge, Cambridge CB2 3QZ, UK
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Abstract

A combination of transmission electron microscopy (TEM) and in situ tensile testing in an environmental scanning electron microscopy (ESEM) was used to evaluate the static bulk and dynamic surface morphologies of medical polyurethanes. TEM results showed phase-separated hard segment and soft segment structures. Surface morphology as a function of strain was studied using ESEM in conjunction with a tensometer.

Keywords

TEMESEMpolyurethanemedicalstainingRuO4
Type
MATERIALS APPLICATIONS
Information
Microscopy and Microanalysis , Volume 12 , Issue 2 , April 2006 , pp. 151 - 155
Copyright
© 2006 Microscopy Society of America

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References

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