Abstract New bio-based compounds containing phenols were prepared from vegetable oils. Vegetable oils from Mango seed (mangifera indica), Orange seed (Citrus Sinensis) Jathropha curcas seed and pawpaw seed (carica papaya) were modified using phenol and ortho cresol at controlled temperature and pressure in the presence of a super acid (HClO4) as catalyst via chain growth polymerization. The physicochemical properties of the products obtained were determined, Viscometry studies was carried out to determine the molecular weight of the products, Fourier transformation infra � red spectroscopy (FTIR) and Proton nuclear magnetic resonance (1NMR) were carried out to check for modifications and structural elucidation. The physicochemical parameters for the grafted samples show marked increase in iodine values: 79.55g/100g, 101.07g/100g, 101.32g/100g, 105.33g/100g and 108.26g/100g for Phenolated mango oil, Phenolated Orange oil, Phenolated Jathropha curcas oil, cresolated Jathropha curcas oil and phenolated pawpaw oil respectively compared to the ungrafted samples: 45g/100g, 62.51g/100g, 97.89g/100g and 62.98g/100g for Mango seed oil, Orange seed oil, Jathropha curcas seed oil and pawpaw oil. The Viscometry analysis showed the various molecular weights of the polymerized products to be 366g/mol, 674g/mol, 406g/mol, 330g/mol and 412g/mol for phenolated mango seed oil, phenolated orange seed oil, phenolated jathropha seed oil, cresolated Jathropha seed oil and phenolated mango seed oils compared to the molecular weight obtained of the various samples which are: 272g/mol, 392g/mol, 252g/mol and 258g/mol for mango seed oil, orange seed oil, Jatropha seed oil and pawpaw seed oil. These values show an increase in molecular weight signifying that polymerization had taken place. The FTIR shows several absorptions in the aromatic region for the products than found in the samples. The proton NMR showed lots of peaks in the region where benzene is commonly absorbed for all the products (7.00ppm-8.00ppm) but none of these peaks show in the original samples. Peaks in the region of 4.5ppm to 5.5ppm were common to all the samples. The Viscometry proton NMR, and the FTIR results were all complementary. The results in general showed that the level of unsaturation and functionality of the various products had increased. These products are new aromatic-aliphatic bio-based raw materials suitable as feedstock for the petrochemical industries. They are biodegradable because of the presence of carbonyl groups in their structures that can undergo photolytic degradation. They meet up with the requirement of the green chemistry policies and make our planet safer to inhabit while enjoying technology. Keywords: Alternative industrial chemicals, Vegetable oils, Grafting, Green chemistry.

Username
Password