Microstructure and biostability of biomedical polyurethane block copolymers with different soft segment chemistries

Rebeca Hernandez, Jadwiga Weksler, Ajay Padsalgikar, James Patrick Runt

Research output: Contribution to conferencePaper

Abstract

We present a comparative study of the biostability and structural organization of polyurethanes (PU) having chemistries of those of commercial biomedical interest. The soft segments are poly(carbonate)diol (PC), poly(tetramethylenoxide)diol (PTMO) and a mixed macrodiol composed of poly(hexamethylenoxide)diol (PHMO) and poly(dimethylsiloxane) (PDMS). In PDMS based PU, PDMS units are completely phase separated from the hard segments due to their highly non-polar character. However, 'interphase' mixing is achieved for the PDMS end group segments and the PHMO component. PTMO and PC-based PU present a much lower degree of phase separation and larger interdomain spacings than PDMS based PU. The mechanical properties and biostability of the samples will also be compared.

Original languageEnglish (US)
Pages2539-2543
Number of pages5
StatePublished - Sep 28 2007
EventSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007 - Cincinnati, OH, United States
Duration: May 6 2007May 11 2007

Other

OtherSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007
CountryUnited States
CityCincinnati, OH
Period5/6/075/11/07

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Polymers and Plastics

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    Hernandez, R., Weksler, J., Padsalgikar, A., & Runt, J. P. (2007). Microstructure and biostability of biomedical polyurethane block copolymers with different soft segment chemistries. 2539-2543. Paper presented at Society of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007, Cincinnati, OH, United States.