Cationic polymerization of waste palm cooking oil under microwave irradiation

13th Joint Conference on Chemistry

Mas'Ud, Zainal Alim^1 ; Farid, Muhamad^1 ; Surya, Herlambang^1 ; Bambang, Soegijono^2

Department of Chemistry, Bogor Agriculture University, Kampus IPB Dramaga, Bogor, Indonesia^1

Department of Physics, University of Indonesia, Depok, Indonesia^2

关键词: Boron trifluoride etherate;    Cooking oil;    Endothermic transitions;    Fourier transform infrared spectrometry;    Hypochromic shifts;    Polymer products;    Renewable materials;    UV-visible spectrometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/509/1/012083/pdf
DOI  :  10.1088/1757-899X/509/1/012083

来源: IOP

【 摘 要 】

Waste palm cooking oil is one of the largest waste types in Indonesia and it is potential as a source of renewable materials. Conversion of the material was carried out by the cationic polymerization of the double bond (C=C) in the triglyceride. The polymerization using boron trifluoride-etherate (BF3-etherate) as the catalyst was performed under microwave irradiation. The irradiation was varied in some power settings and reaction times. The fatty acid components after purification were analysed using gas chromatography (GC). The parameter analysed were iodine number (titrimetric), maximum wavelength absorption (UV-visible spectrometry), functional groups (Fourier transform infrared spectrometry, FTIR) and thermal properties (differential scanning calorimetry, DSC). The treatment using microwave irradiation produced solid polymer form with lower iodine number, meaning that the double bond in the fatty acid has reduced. The small amount of the double bond was also reflected by a hypochromic shift in the UV-vis spectra, as well as decreasing peak intensity at the C=C stretch in the FTIR spectra. The DSC thermogram of the product shows two endothermic transitions, indicating the melting point of the monomer and the polymer product.