Solvent-free synthesis of polyols from 1-butene metathesized palm oil for use in polyurethane foams

摘要

Green Polyols were synthesized from a 1-butene cross metathesized palm oil (PMTAG) using a green, solvent free epoxidation and hydroxylation pathway. The synthetic strategy was adapted to control the degree of double bond epoxidation and ultimately the hydroxyl value of the polyols. The polyols comprised diol and tetrol monomers with terminal hydroxyl groups content as high as approximate to 18 mol %, and achieved hydroxyl values between 83 and 119 mg KOHg-1. Functional Rigid and highly flexible foams were prepared from two designer Green Polyols. The foams presented a high thermal stability (T-on of degradation of approximate to 270 degrees C), suitable glass transition temperatures (approximate to-12 degrees C and approximate to 50 degrees C) and compressive strength (0.21 MPa at 10% strain and approximate to 1 MPa at 10% strain for the flexible and rigid foams, respectively) which are superior to existing lipid-based counterparts. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43509.