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Chemo-Enzymatic Syntheses of Polyester-Urethanes

AuthorsBarrera-Rivera, Karla A.; Marcos-Fernández, Ángel CSIC ORCID CVN ; Martínez-Richa, Antonio
Issue Date2010
PublisherAmerican Chemical Society
CitationGreen Polymer Chemistry: Biocatalysis and Biomaterials, Cap. 16: 227-235 (2010)
SeriesACS Symposium Series
AbstractThe enzymatic synthesis of α-ω-telechelic polycaprolactone diols (HOPCLOH) and triblock copolymers was studied. Synthesis of α-ω-telechelic PCL diols was achieved by enzymatic ring opening polymerization with Yarrowia lipolytica lipase immobilized on a macroporous resin Lewatit VP OC 1026, and using diethylene glycol and poly(ethylene glycol) as initiators. Biodegradable linear polyester-urethanes were prepared from synthesized PCL diols and hexamethylenediisocyanate (HDI). Depending on the length of PCL in HOPCLOH, the polymers were amorphous or semicrystalline. Measured mechanical properties strongly depend upon the degree of crystallinity of HOPCLOH.
Description9 páginas.-- Editores: H. N. Cheng y Richard A. Gross.
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