Comparison study on the physicochemical properties of phosphate esters from epoxidised palm kernel oil and soybean oil

N. R A Norzali, Khairiah Badri, Ishak Ahmad, S. P. Ong

Research output: Contribution to journalArticle

Abstract

A series of phosphate esters from soybean oil and palm kernel oil has been synthesised by reacting each epoxidised soybean oil and epoxidised palm kernel oil with o-phosphoric acid in the presence of t-butyl alcohol as the solvent. The amount of o-phosphoric acid was varied at 0, 2.5, 5.0 and 7.5 wt-%. The hydrolysis was conducted at a temperature range of 80-90°C. The physiochemical properties of the phosphate esters were determined, that were, acid value, hydroxyl value, oxirane and moisture contents. The Fourier transform infrared spectroscopy analysis was carried out to confirm the formation of the phosphate ester (P-O-C). The oxirane content after hydrolysis was below 0.2%. Higher addition of phosphoric acid (7.5 wt-%) increased the moisture content and the acid value of the phosphate esters. These results were applicable for both soybean oil-based phosphate ester (SOPE) and the palm kernel oil-based phosphate ester (PKOPE). However, SOPE and PKOPE with 2.5 wt-% of phosphoric acid showed higher hydroxyl value.

Original languageEnglish
Pages (from-to)S6-26-S6-31
JournalMaterials Research Innovations
Volume18
DOIs
Publication statusPublished - 18 Dec 2014

Fingerprint

soybeans
Soybean oil
Soybean Oil
Palm oil
esters
Esters
phosphates
Phosphates
oils
phosphoric acid
Phosphoric acid
Ethylene Oxide
Hydroxyl Radical
moisture content
hydrolysis
Hydrolysis
Moisture
1-Butanol
acids
Acids

Keywords

  • Epoxidation
  • Palm kernel oil
  • Phosphate ester
  • Ring-opening hydrolysis
  • Soybean oil

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Comparison study on the physicochemical properties of phosphate esters from epoxidised palm kernel oil and soybean oil. / Norzali, N. R A; Badri, Khairiah; Ahmad, Ishak; Ong, S. P.

In: Materials Research Innovations, Vol. 18, 18.12.2014, p. S6-26-S6-31.

Research output: Contribution to journalArticle

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