Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/4095
Title: Surface properties and restructuring of a cross-linked polyurethane-poly(amido-amine) network
Authors: Magnani, Agnese 
Barbucci, R.
Lewis, K. B.
Leach Scampavia, D.
Ratner, B. D.
Issue Date: 1995
Project: None 
Journal: JOURNAL OF MATERIALS CHEMISTRY
Abstract: 
Surface analysis of a new heparinisable material (PUPA) based on polyurethane (PU) and poly(amido-amine)(PAA) components has been performed by ATR FTIR, ESCA, SIMS and AFM measurements, on both dry and hydrated states. This analysis demonstrated that, as for PU, the PUPA surface is enriched in the soft-segment phase in air. Despite its crosslinked nature, PUPA underwent surface restructuring in aqueous media, as demonstrated by ATR FTIR, ESCA and AFM measurements, and the hydrophilic, high-energy component (PAA) migrated to the surface. This reorientation process is reversible and involves only the outermost surface layers
Description: 
55620
URI: http://hdl.handle.net/20.500.12779/4095
ISSN: 0959-9428
DOI: 10.1039/jm9950501321
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