Low permeability biomedical polyurethane nanocomposites

Ruijian Xu, Evangelos Manias, Alan J. Snyder, James Patrick Runt

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

In this article we describe our continuing research on a novel nanocomposite approach for reducing gas permeability through biomedical polyurethane membranes. Nanocomposites were prepared using commercially available poly(urethane urea)s (PUU) and two organically modified layered silicates (OLS). Wide-angle X-ray diffraction experiments showed that the silicate layer spacing in the nanocomposites increased significantly compared with the neat OLS, signifying the formation of intercalated PUU/OLS structures. The nanocomposite materials exhibit increased modulus with increasing OLS content, while maintaining polymer strength and ductility. Water vapor permeability was reduced by about fivefold at the highest OLS contents, as a result of PUU/inorganic composite formation.

Original languageEnglish (US)
Pages (from-to)114-119
Number of pages6
JournalJournal of Biomedical Materials Research - Part A
Volume64
Issue number1
DOIs
StatePublished - Jan 1 2003

Fingerprint

Silicates
Polyurethanes
Nanocomposites
Gas permeability
Urethane
Steam
Urea
Water vapor
Ductility
Polymers
Membranes
X ray diffraction
Composite materials

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Biomaterials
  • Biomedical Engineering
  • Metals and Alloys

Cite this

Xu, Ruijian ; Manias, Evangelos ; Snyder, Alan J. ; Runt, James Patrick. / Low permeability biomedical polyurethane nanocomposites. In: Journal of Biomedical Materials Research - Part A. 2003 ; Vol. 64, No. 1. pp. 114-119.
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Low permeability biomedical polyurethane nanocomposites. / Xu, Ruijian; Manias, Evangelos; Snyder, Alan J.; Runt, James Patrick.

In: Journal of Biomedical Materials Research - Part A, Vol. 64, No. 1, 01.01.2003, p. 114-119.

Research output: Contribution to journalArticle

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