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Structural characterization of selected prosthetic–orthotic polymers by nuclear magnetic resonance spectroscopy

✍ Scribed by Michael D. Waldmeier; Evan H. Greener; Eugene P. Lautenschlager

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
511 KB
Volume
59
Category
Article
ISSN
0021-8995

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✦ Synopsis

The structural characterization for five currently used prosthetic-orthotic polymers, determined by proton ('H) nuclear magnetic resonance spectroscopy, showed residual u:nsaturation, C=C groups, in all materials, ranging from 1.7 to 15%. The determination of residual unsaturation by 'H-NMR spectroscopy in polymers contributes information that may be useful for: (1) quality control of batches of materials, and (2) the development 'of standards, test methods necessary to evaluate the effects of environmental influences associated with long-term clinical service. Materials selected for current usage were: Durr-Plex (polyethylene terephthalate), polypropylene, Subortholen (polyethylene), Surlyn (ethylene methacrylate ionomer), and Uvex (cellulose acetate butyrate).

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