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An FTIR–ATR investigation of in vivo poly(ether urethane) degradation
Author(s) -
Wu Y.,
Sellitti C.,
Anderson J. M.,
Hiltner A.,
Lodoen G. A.,
Payet C. R.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070460202
Subject(s) - degradation (telecommunications) , ether , fourier transform infrared spectroscopy , polymer chemistry , biodegradation , materials science , in vivo , chemistry , nuclear chemistry , chemical engineering , organic chemistry , telecommunications , microbiology and biotechnology , computer science , engineering , biology
Surface degradation of implanted poly(ether urethane)s was studied quantitatively with a micro‐ATR–FTIR technique. Substantial degradation was observed particularly in the soft segment at the α‐carbon adjacent to the ether linkage. The degradation caused changes in the concentration profiles of the soft‐segment groups in the depth direction, and the affected depth was up to 10 microns after implantation for 10 weeks. Inhibition of degradation by antioxidants indicated the oxidative nature of degradation. An in vivo poly(ether urethane) degradation mechanism was proposed.