Synthesis And Characterization And Performance Evaluation Of Poly (Ester Amide) Urethane Derived From Thevetia Nerrifolia Seed Oil From Nigeria
Thevetia nerrifolia seed oil was extracted from the seed-bearing oil using hot extraction method involving the use of Soxhlet apparatus. The oil was characterized for physicochemical properties which include; specific gravity, refractive index, acid value, iodine value, and saponification value respectively. N, N-bis (2-hydroxyl ethyl) Fatty amide was obtained from the oil by reacting the oil with diethanolamine at 120oC, which was then reacted with phthalic anhydride at 140-150oC to give poly (ester amide). The poly (ester amide) was modified by reacting with 2, 4-diisocyanate under N2 atmosphere at 120oC to give poly (ester amide) urethane. Physicochemical characterization was carried out on both fatty amides, the unmodified and modified poly (ester amide). The film properties and chemical resistance were carried out on both the unmodified and urethane modified poly (ester amide). FTIR and TGA analysis were also carried out on the unmodified and the modified poly (ester amide). Findings revealed that the oil is semi-drying; suitable for surface coatings and that the performances of the poly (ester amide) were enhanced in terms of chemical resistance, film properties and thermal stability upon modification with a diisocyanate.
S. Pramanik, K. Sagar, B. K. Konwar and N. Karak (2012). Synthesis, characterization and properties of a castor oil modified biodegradable poly (ester amide) resin. Progress in Organic Coatings, 75: 569-578
S. Mallakpour and A. Zadehnazari (2011). Advances in synthetic optically active condensation polymers-A review. Express Polymer Letters, 5: 142-181
M. Okada (2002). Chemical synthesis of biodegradable polymers, Progress in Polymer Science 27: 87-133
J. A. Horwitz, K. M. Shum, J. C. Bodle, M. X. Deng, C. C. Chu and C. A. Reinhart-King (2010) “Biological Performance of Biodegradable Amino acid-based poly (ester amide) s: Endothelial cell adhesion and inflammation in vitro” Journal of Biomedical Material Research, 95: 371-380
D. K. Knight, E. R. Gillies and K. Mequanint (2011) “Strategies in Functional Poly (ester amide) Synthesis to Study Human Coronary Artery Smooth Muscle Cell Interactions” Bio macro molecules 12: 2475-2487
R. Guo, C. C. Chu (2007) “Biodegradation of Unsaturated Poly (ester amide) s and their Hydro gels” Biomaterials, 28: 3284-3294
R. Rodriguez-Galan, A. Franco, L. puiggali and J. Degradable (2011) “Poly (ester amide) s for Biomedical Application: Review”, Polymers, 3: 65-69
A. Akelah, A. Moet (1990). Functionalized Polymers and Their Applications; Chapman and Hall: London, UK, 67-84
A.S. Kulshrestha, A. Mahapatro (2008). Polymers for Biomedical Applications. ACS Symp. Ser. 977: 1-7.
S. Liu, C. Li, J. Zhao, Z. Zhang and W. Yang (2011). Synthesis and characterization of poly (ester-amides) having short nylon-6 segments in the main chains through poly-condensation and chain extension. Polymer; 52: 6046-6055
N. Kaushik, K. Kumar, S. Kumar and S. Roy (2007). Genetic Variability and Divergence Studies in Seed Triats and Oil content of Jathropha curcas L. Accessions Biomass and Bioenergy 31: 497-502
D. Pearson (1991). The Chemical Analysis of Foods 11th Ed Church-hill
R. S. Mohammed, A. Manawwer and M. A. Naser (2015). Development of Castor Oil Based Poly(urrthane-esteramide)/TiO Nan-composites as Anticorrosive and Antimicrobial Coatings. Journal of Nano-materials, 2(33): 67-75
T. O. Siyanbola, K. Sasidhar, B. P. Anjaneyulu, B.V.S.K. Rao, N. Ramanuj, O. Olaofe, E.T. Akintayo and K. V. S. N. Raju (2013).. Anti-microbial and anti-corrosive poly (ester amide urethane) siloxane modified ZnO hybrid coatings: RSC Advance. 5(59): 47928-4794
ASTM D 1639-90 (1994). Standard Methods for Acid value of Organic Materials, In: Annual Book of American Society and Material Standard 6: 260-261
ASTM D 1541-60 (1979). Test for Iodine value of Drying Oils and their Derivatives, In: Annual Book of American Society and Material Standard 6: 260-261
ASTM D 1962-67 (1994). Test for Saponification value of Drying Oils , Fats and Polymerized Fatty Acids In: Annual Book of American Society and Material Standard 29: 259-61
ASTM D 1647-89 (1994) Resistance of Dried Film to Varnishes, Water and Alkalie Annual Book of American Society and Material Standard Philadelphia 6: 258-9
F.E.M. Booth and G.E Wickens (1998). Non-Timber uses of Selected and Zone Trees and Shrubs in Africa. FAO conservation Guide Rome 92-101
M. Baumer (1996). Food-producing Trees and Shrubs of West Africa Serie-Etuides-et-Recherekes Senegal 168-170: 252-260
C. M. Ewulonu, I. O. Igwe and G. N. Onyeagoro (2016) Performance of Local Clay-Titanium Dioxide Core-Shell Extender Pigments in Alkyd Paints. Advances in Nanoparticles 5(1): 90-102
J. Mills and R. White (1979) Analysis of Paint Media. In: National Gallery Technical Bulletin, London: National Gallery 3: 65-67
Mohammed Al-Shannag (2012) Energy Saving in Alkyd Resin and Aqueous-Emulsion Processes using a heat-integrated cycle. Journal of the University of Chemical Technology and Metallurgy, 47(1): 31-36
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