2024-03-28T14:01:10Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/344942021-06-22T13:01:43Zcom_10261_56com_10261_3col_10261_939
DIGITAL.CSIC
author
Barrera-Rivera, Karla A.
author
Marcos-Fernández, Ángel
author
Martínez-Richa, Antonio
2011-04-11T13:06:58Z
2011-04-11T13:06:58Z
2010
Green Polymer Chemistry: Biocatalysis and Biomaterials, Cap. 16: 227-235 (2010)
9780841225817
http://hdl.handle.net/10261/34494
10.1021/bk-2010-1043.ch016
The 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.
eng
closedAccess
Chemo-Enzymatic Syntheses of Polyester-Urethanes
capítulo de libro
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