N. Elbers1, C. K. Ranaweera1, M. Ionescu2, X. Wan2, P. K. Kahol3, Ram K. Gupta1,2*
Journal of Renewable Materials, Vol.5, Suppl.1, pp. 74-83, 2017, DOI:10.7569/JRM.2017.634137
Abstract The objective of this research is to prepare rigid polyurethane (PU) foams from α-phellandrene, a biobased compound. Two types of polyols were synthesized by reacting α-phellandrene with 2-mercaptoethanol and α-thioglycerol via thiol-ene chemistry route. The completion of the reaction was identified by using FTIR. PU foams from α-phellandrene polyols and commercial polyol were compared with regard to foam characteristics and properties. All the PU foams showed apparent density of 28–39 kg/m3 with closed-cell content above 90%. The highest glass transition temperature of 229 °C and compressive strength of 220 kPa were observed for the polyol synthesized by reacting α-phellandrene and… More >
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