G. LLIGADAS et.al.: Synthesis and Characterization of Polyurethanes from Epoxidized Methyl Oleate Based Polyether Polyols as Epoxidized Methyl Oleate Based Polyether Polyols as Epoxidized Methyl Oleate Based Polyether Polyols as Renewable Resources

Author(s): G. LLIGADAS, J. C. RONDA, M. GALIA, U. BIERMANN, J. O. METZGER

Title: Synthesis and Characterization of Polyurethanes from Epoxidized Methyl Oleate Based Polyether Polyols as Epoxidized Methyl Oleate Based Polyether Polyols as Epoxidized Methyl Oleate Based Polyether Polyols as Renewable Resources

Date of Upload: 2005-10-10

Article: J. Polym. Sci. A, 2006, 44, 634-645, Departament de Quy´mica Analy´tica i Quy´mica Orga`nica, Universitat Rovira i Virgili, Campus Sescelades, Marcelly´ Domingo s/n, 43007 Tarragona, Spain & Institute of Pure and Applied Chemistry, University of Oldenburg, 26111 Oldenburg, Germany

Keywords: polyether; polyurethanes, renewable, Fatty acids, sustainable development, renewable feedstock, vegetable oil, plant oil, fat

Abstract:
Oligomeric polyether polyols were obtained through the acid-catalyzed ring-opening polymerization of epoxidized methyl oleate and the subsequent partial reduction of ester groups to give primary alcohols. The oligomers were characterized with titration, spectroscopic techniques (Fourier transform infrared and nuclear magnetic resonance), matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, size exclusion chromatography, and differential scanning calorimetry. Depending on the degree of reduction, polyols of different hydroxyl content values were obtained and were reacted with 4,40-methylenebis(phenyl isocyanate) to yield polyurethanes. These materials, which were characterized by differential scanning calorimetry, thermogravimetric analysis, and dynamic mechanical thermal analysis, could behave as hard rubbers or rigid plastics.

URL: http://www.chemie.uni-oldenburg.de/oc/metzger/publikationen/pdf/108.pdf (application/pdf)


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