Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/34223
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Title

Synthesis and characterization of biodegradable non-toxic poly(ester-urethane-urea)s based on poly(ε-caprolactone) and amino acid derivatives

AuthorsMarcos-Fernández, Ángel CSIC ORCID CVN ; Abraham, Gustavo A.; Valentín, Juan L. ; San Román, Julio CSIC
KeywordsBiodegradable polyurethanes
Lysine diisocyanate
Amino acid chain extenders
Issue Date25-Jan-2006
PublisherElsevier
CitationPolymer 47(3): 785-798 (2006)
AbstractNon-toxic biodegradable linear poly(ester-urethane-urea)s with different hydrophilic character were synthesized from poly(ε-caprolactone) as macrodiol, l-lysine diisocyanate (LDI) and ethyl ester l-lysine or l-ornithine as chain extenders. Linear segmented polymers were synthesized by the prepolymer method with a tertiary amine playing a critical role in the chain extension in heterogeneous conditions. The prepared segmented polymers were fully chemically and physically characterized, including water uptake and hydrolytic stability measurements. Depending on the poly(ε-caprolactone) length, the segmented polymers were amorphous or semicrystalline. The crystallinity degree strongly affected the mechanical properties and water uptake behaviour.
Description14 páginas, 10 figuras, 7 tablas.
Publisher version (URL)http://dx.doi.org/10.1016/j.polymer.2005.12.007
URIhttp://hdl.handle.net/10261/34223
DOI10.1016/j.polymer.2005.12.007
ISSN0032-3861
Appears in Collections:(ICTP) Artículos

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