Tamara Calvo-Correas1, Mirna A. Mosiewicki2, M. Angeles Corcuera1, Arantxa Eceiza1, Mirta I. Aranguren2,*
Journal of Renewable Materials, Vol.3, No.1, pp. 3-13, 2015, DOI:10.7569/JRM.2014.634132
Abstract Rigid polyurethane foams were synthesized by using a vegetable oil-based polyol and 4,4-diphenylmethane
diisocyanate prepolymer as the majority of reactives,. The polyol was produced by hydroxylation of crude
linseed oil with performic acid generated in situ by the reaction of hydrogen peroxide and formic acid. The
characterization by FTIR, H1
NMR, iodine and hydroxyl values of the polyol and its comparison with the
original linseed oil supports the success of the reaction. The reference foam was subsequently modifi ed by
substituting part of the linseed oil polyol with glycerol, diethylene glycol, and a polyethylene glycol (all of
them of lower… More >
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