Paper Title:
Influence of Catalyst Type on Biocompatibility of Polyurethanes
  Abstract

Segmented polyurethanes (PUR) based on poly(ε-caprolactone)diol (PCL) as soft segments and cycloaliphatic diisocyanate were obtained. Two different types of catalysts were used for synthesis: dibutyltin dilaurate (DBTDL) and iron (III) acetylacetonate Fe(acac)3. Structure, thermal analysis, water absorption of obtained polyurethanes were studied. Polyurethanes catalyzed by Fe(acac)3 have lower glass transition temperature (Tg2) and melting temperature (Tm2) of hard domains in comparison with polyurethanes synthesized with DBTDL. Amount of absorbed water is in the range of 1,0-2,0% and is higher for PUR catalyzed by DBTDL. SEM observations show that type of catalyst used in synthesis affect structure of polyurethanes. Biological test XTT was done in order to determine influence of various metallic compounds used as catalyst on viability of human bone cell culture. The XTT results indicate no influence on viability of human osteoblasts cultured on the obtained PUR.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
887-891
DOI
10.4028/www.scientific.net/MSF.514-516.887
Citation
J. Ryszkowska, M. Bil, P. Woźniak, M. Lewandowska, K. J. Kurzydłowski, "Influence of Catalyst Type on Biocompatibility of Polyurethanes", Materials Science Forum, Vols. 514-516, pp. 887-891, 2006
Online since
May 2006
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$32.00
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