The effect of strain state on the biostability of a poly(etherurethane urea) elastomer.

@article{Schubert1997TheEO,
  title={The effect of strain state on the biostability of a poly(etherurethane urea) elastomer.},
  author={M A Schubert and Michael J. Wiggins and James M Anderson and Anne Hiltner},
  journal={Journal of biomedical materials research},
  year={1997},
  volume={35 3},
  pages={319-28}
}
The effect of deformation state on degradation of a PEUU without added stabilizers was examined in an oxidative environment that simulates the in vivo biodegradation of the polymer. Polymer tubes were stressed uniaxially and biaxially over glass mandrels and treated in 20% hydrogen peroxide/0.1 M cobalt chloride solution for 12 days at 37 degrees C. The amount of degradation was determined from the ATR-FTIR peak height of the amorphous aliphatic ether absorbance at 1110 cm-1. If a uniaxial… CONTINUE READING