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|Title:||Structure-property relationships of polyurethane-based materials (PUPA) for applications in biomedicine||Authors:||S., Cimmino
|Issue Date:||1993||Project:||None||Journal:||JOURNAL OF APPLIED POLYMER SCIENCE||Abstract:||
Polyurethane poly(amido–amine) (PUPA) is a modified polyurethane whose chains are crosslinked with those of a tertiary aminic polymer [poly(amido–amine) (N2LL)] by the bifunctional agent hexamethylenediisocyanate (HMDI). PUPA is capable of complexing heparin; a behavior that is related to the presence of poly(amido-amine). The effect of the chemical composition of the starting mixture and/or the reaction time on the morphology and physical properties was studied by using differential scanning calorimetry, dynamic mechanical experiments, x-ray, scanning electron microscopy, and Fourier transform infrared attenuated total reflection analyses.
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