Examination of hard segment and soft segment phase separation in polyurethane medical materials by electron microscopy techniques.
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.
Taylor
Jennifer E
JE
Department of Materials Science, University of Cambridge, Cambridge CB2 3QZ, UK.
Laity
Peter R
PR
Wong
Steven S
SS
Norris
Keith
K
Khunkamchoo
Peck
P
Cable
Martin
M
Andrews
Geoffrey
G
Johnson
Anthony F
AF
Cameron
Ruth E
RE
D001672:Biocompatible Materials; D001698:Biomedical Engineering / Q000379:methods; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D011140:Polyurethanes / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013314:Stress, Mechanical; D013499:Surface Properties
D001672:Biocompatible Materials; D011140:Polyurethanes