Journal of Oil Palm Research Vol. 29  March 2017 p.  88-96
DOI:

NON-CATALYTIC ONE-POT SYNTHESIS OF POLYHYDROXY ESTOLIDES FROM OLEIC ACID

Author(s): HOONG SENG SOI*; YEONG SHOOT KIAN* and HAZIMAH ABU HASSANǂ

Poly­hy­droxy estolides were suc­cess­fully syn­the­sised from oleic acid through a non-catalytic one-pot method. Gel per­me­ation chro­matog­ra­phy (GPC) analy­sis showed that the yield of the poly­hy­droxy estolides was about 72% and the num­ber aver­age mol­e­c­u­lar weight (Mn) of the prod­uct ranges between 1000 – 2200 Da. Other instru­men­tal analy­ses such as nuclear mag­netic res­o­nance (NMR), Fourier trans­form infra– Red (FTIR) and Matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) as well as acid value analy­sis revealed that the pre­pared poly­hy­droxy estolides was oligomers of dihy­drox­ys­tearic acid linked by ester groups and fur­ther con­fir­ma­tion of the oligomers struc­ture was achieved by reduc­tion and saponi­fi­ca­tion reactions.

Keywords: , ,

Author Information
* Malaysian Palm Oil Board, 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia. E-mail:


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