(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170


Pages: 384-388
J. M. Jabar, F. K. Fakinlede and B. E. Bello

keywords: Compressive strength, density, polyols, rigid polyurethane, vegetable oil


The palm and groundnut oil used for this study were bleached, fractionated and subjected to conventional method of synthesizing polyol from vegetable oil. The synthesized polyols were used for production of rigid polyurethane (RPU) foams through reaction with 2,4–diphenyl methylene diisocyanate (MDI) using two-shot method. The density, water absorptivity and compressive strength of the vegetable oil based RPU foams were better than those of the petrochemical based RPU foam. These results indicate that bio-based polyols have good potential for replacement of petroleum based polyols in synthesis of RPU foam as precursor in chemical and allied industries.


Abayeh OJ, Ismail A & Abayeh OM 2011. Quality characteristics of Pumpkin seed oil. J. Chem. Soc. Nig., 36(1): 220–223. Adelaja JO 2006. Evaluation of mineral constituents and physicochemical properties of some oil seeds. Elect. J. Env. Agric. and Food Chem., 8: 102–110. Alam M, Ashraf SM & Ahmad S 2008. Pyridine-poly (urethane ester amide) coatings from linseed oil. J. Poly. Res., 15: 343–350. Arniza MZ, Hoong SS, Idris Z, Yeong SK, Hassan HA, Din AK & Choo YM 2015. Synthesis of transesterified palm olein-based polyol and rigid polyurethanes from this polyol. J. Am. Oil Chem. Soc., 92: 243–255. Badri KH, Wong CS, Shahrom MSR, Liow CT, Yuhana N & Norzali NRA 2010. FTIR spectroscopy analysis of the prepolymerization of palm-based polyurethane. J. Solid St. Sci. & Tech., 18(2): 1–8. Chian KS & Gan LH 1998. Development of rigid polyurethane foam from palm oil. J. Poly. Sci., 68(3): 509–515. Derawi D & Salimon J 2010. Optimization on epoxidation of palm olein by using performic acid. J. Chem., 7(4): 1440–1448. Dworakowska S, Bogdał D, Zaccheria F & Ravasio N, 2014. The role of catalysis in the synthesis of polyurethane foams based on renewable raw materials. Catalysis, 223: 148–156. Ibeto CN, Okoye COB & Akuzuo UO 2012. Comparative study of the physicochemical characterization of some oils as potential feedstock for biodiesel production. Ren. Energy, 5. Jabar JM, Lajide L, Adetuyi AO & Owolabi BJ 2017a. Synthesis and characterization of rigid polyurethane foam from locally available underutilized T. peruviana oil-based polyol. Conf. Pro. 5th Annual Conf. Sch. Sci., FUTA, at T. I. Francis Aud., 27-30th June, 2017, pp. 185–192. Jabar JM, Lajide L, Adetuyi AO & Owolabi BJ 2017b. Mechanical and thermal analysis of rigid polyurethane foam from locally available underutilized T. peruviana-based polyol. Conf. Pro. 5th Annual Conf. Sch. Sci., FUTA, at T. I. Francis Aud., 27-30th June, 2017, pp. 208–215. Jabar JM, Lajide L, Adetuyi AO, Owolabi BJ & Owokotomo IA 2015. Chemical modification of Jatropha curcas and Thevetia peruviana oil as starting materials for chemical industry. Am. J. Sci. and Ind. Res., 6(6): 123–130. Lee CS 2008. Rigid and flexible polyurethane foams production from palm oil-based polyol. Ph.D Thesis, Fac. Sci., Uni. Malaya, Kuala Lumpur, Malaysia. Meier MAR, Metzger JO & Schubert US 2007. Plant oil renewable resources as green alternatives in polymer science. Chem. Soc. Rev., 36: 1788–1802. Norizzah AR, Norsyamimi M, Zaliha O, NurAzimah K & SitiHazirah MF 2014. Physicochemical properties of palm oil and palm kernel oil blend fractions after interesterification. Intl. Food Res. J., 22(4): 1390–1395. Okieimen FE, Pavithran C & Bakare IO 2005. Epoxidation and hydroxylation of rubber seed oil: One pot multi-step reactions. Eu J. Lipid Sci. and Tech., 107: 330–336.