Siyanbola, T. O. and James, O. O. and Rao, B. V. S. K. and Narayan, R. and Olaofe, O. and Akintayo, E. T. and Raju, KVSN (2013) SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL EVALUATIONS OF NOVEL HYBRID POLYESTERAMIDEURETHANES PREPARED FROM YELLOW OLEANDA SEED OIL. In: INTERNATIONAL CONFERENCE ON SCIENCE AND SUSTAINABLE DEVELOPMENT IN NIGERIA, 13 - 17 May, 2013, Conference Centre, University of Ibadan, lbadan, Nigeria. Faculty of Science Lakeside Lecture Theatre. IBADAN.
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Abstract
Air drying polyesteramide-urethanes resins were synthesized from Thevetia peruviana seed oil commonly known as Yellow oleanda (a tropical ornamental shrub) having about 68.8% unsaturated and 30.9% saturated fatty acids. The physico- chemical characterization of the optimized unsaturated FAME such as hydroxyl value, iodine value, saponification value, refractive index, inherent viscosity were carried out using standard methods. Through condensation reaction the N,N'- bis(2-hydroxyethyl) Thevetia peruviana (HETA) prepared from the FAME reacted with isophthalic acid to form polyesteramide. The latter undergo urethanation with H1 ' 2MDI. The structural elucidation of the moisture cured polyesteramide-urethane coating was based on FTIR, 1H-NMR and 13C-NMR spectroscopic methods. The coatings films were evaluated for its antihacterial activity and thermal stability properties on TGA and DSC. The SEM of the --uating films was also examined.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Mrs Patricia Nwokealisi |
| Date Deposited: | 20 Jan 2017 10:36 |
| Last Modified: | 20 Jan 2017 10:36 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/7602 |
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