Paper Title:
Polyurethane-Polyurea Membranes for Blood Oxygenation
  Abstract

The structural versatility of polyurethane based membranes is enhanced through the introduction of two soft segments to obtain new membranes with improved hemocompatibility. Crosslinked polyurethane/urea membranes with two soft segments were prepared by extending a polypropylene oxide-based tri-isocyanate terminated prepolymer (PU) with polybutadiene diol (PBDO). The ratio of PU to PBDO was 100/0 and 90/10. The membranes were characterised in terms of permeation towards O2 and CO2 and their hemocompatibility was evaluated through hemolysis and thrombosis experiments. It was found that the membrane with PBDO had the highest permeability to O2 and CO2 and it was non-hemolytic and less thrombogenic.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
863-867
DOI
10.4028/www.scientific.net/MSF.514-516.863
Citation
M. I. Pinto, D. P. Queiroz, M. H. Gil, A. J. Guiomar, M. Norberta de Pinho, "Polyurethane-Polyurea Membranes for Blood Oxygenation", Materials Science Forum, Vols. 514-516, pp. 863-867, 2006
Online since
May 2006
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Price
$32.00
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