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Molecules 2015, 20(8), 14191-14211; doi:10.3390/molecules200814191

Synthesis of Radiation Curable Palm Oil–Based Epoxy Acrylate: NMR and FTIR Spectroscopic Investigations

1
Department of Chemistry, Faculty of Science, University Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia
2
Department of Radiation Processing, Sudan Atomic Energy Commission, Khartoum 1111, Sudan
3
Polycomposite Sdn Bhd, No.75-2, Jalan TKS 1, Taman Kajang Sentral, Kajang 43000, Selangor, Malaysia
4
Radiation Processing Technology Division, Nuclear Malaysia, Bangi, Kajang 43000, Selangor, Malaysia
5
No.107, Jalan 2, Taman Kajang Baru, Sg Jelok, Kajang 43000, Selangor, Malaysia
6
Department of Chemistry, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp 57000, Kuala Lumpur, Malaysia
*
Authors to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 3 September 2014 / Revised: 12 January 2015 / Accepted: 29 January 2015 / Published: 4 August 2015
(This article belongs to the Section Organic Synthesis)
View Full-Text   |   Download PDF [1521 KB, uploaded 10 August 2015]   |  

Abstract

Over the past few decades, there has been an increasing demand for bio-based polymers and resins in industrial applications, due to their potential lower cost and environmental impact compared with petroleum-based counterparts. The present research concerns the synthesis of epoxidized palm oil acrylate (EPOLA) from an epoxidized palm oil product (EPOP) as environmentally friendly material. EPOP was acrylated by acrylic acid via a ring opening reaction. The kinetics of the acrylation reaction were monitored throughout the reaction course and the acid value of the reaction mixture reached 10 mg KOH/g after 16 h, indicating the consumption of the acrylic acid. The obtained epoxy acrylate was investigated intensively by means of FTIR and NMR spectroscopy, and the results revealed that the ring opening reaction was completed successfully with an acrylation yield about 82%. The UV free radical polymerization of EPOLA was carried out using two types of photoinitiators. The radiation curing behavior was determined by following the conversion of the acrylate groups. The cross-linking density and the hardness of the cured EPOLA films were measured to evaluate the effect of the photoinitiator on the solid film characteristics, besides, the thermal and mechanical properties were also evaluated. View Full-Text
Keywords: palm oil; epoxy acrylate; UV-curing; NMR; FTIR palm oil; epoxy acrylate; UV-curing; NMR; FTIR
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Salih, A.M.; Ahmad, M.B.; Ibrahim, N.A.; Dahlan, K.Z.H.M.; Tajau, R.; Mahmood, M.H.; Yunus, W.M.Z.W. Synthesis of Radiation Curable Palm Oil–Based Epoxy Acrylate: NMR and FTIR Spectroscopic Investigations. Molecules 2015, 20, 14191-14211.

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