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SAXS study of the influence of ethanol on the microstructure of polyurethane-based membrane

Authors
Journal
Journal of Membrane Science
0376-7388
Publisher
Elsevier
Publication Date
Volume
170
Issue
2
Identifiers
DOI: 10.1016/s0376-7388(99)00364-6
Keywords
  • Polyurethane Membrane
  • Solvent
  • Microstructure
  • Saxs Method

Abstract

Abstract SAXS studies of segmental polyurethanes show that swelling of the materials with ethanol results in the formation of small aggregates, with radius of gyration, R g, in the range 3.5–5 nm, independently of hard segments’ structure and length. The nature and formation of the small aggregates are under investigation.

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