MOSIEWICKI mirna Alejandra
congresos y reuniones científicas
Solid "green" polyurethanes based on rapeseed oil polyol/MDI/glycerol
P. ROJEK; M. I. ARANGUEN; A. PROCIAK; M. A. MOSIEWICKI
Workshop; BIOPOLI2015; 2015
Polyurethanes (PUs) are prepared from polyols and isocyanates as main components. As a world trend, the search of new raw materials to replace the synthetic ones for the production of polymers is constantly growing. The oils can be one of the alternatives to provide biobased monomers at competitive cost. In particular, rapeseed oil (RO) is an edible oil, in which the fatty acid content corresponds to about 61% of oleic acid, 21% of linoleic acid, 8% of linolenic acid, and 10% to other acids . Among the different paths for incorporating OH groups, the reaction of the C-C insaturations through epoxidation with peroxy acids followed by oxirane ring-opening with different alcohols like diethylene glycol (DEG) is one of the most interesting for simplicity and low cost . The aim of this work is to synthesize a RO based polyol (ROPO) to be used in the production of unfoamed biobased PUs using glycerol (GLY) as a reactive modifier to increase the crosslinking density and to improve the mechanical properties.