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|Title:||Chemo-Enzymatic Syntheses of Polyester-Urethanes|
|Authors:||Barrera-Rivera, Karla A.; Marcos-Fernández, Ángel; Martínez-Richa, Antonio|
|Publisher:||American Chemical Society|
|Citation:||Green Polymer Chemistry: Biocatalysis and Biomaterials, Cap. 16: 227-235 (2010)|
|Series/Report no.:||ACS Symposium Series|
|Abstract:||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.|
|Description:||9 páginas.-- Editores: H. N. Cheng y Richard A. Gross.|
|Publisher version (URL):||http://dx.doi.org/10.1021/bk-2010-1043.ch016|
|Appears in Collections:||(ICTP) Libros y partes de libros|
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