Bibliographic citations
Verde, E., (2019). Síntesis y caracterización de resinas alquídicas largas en aceite de sacha inchi (Plukeneteia volubilis L.) aplicadas para pinturas artísticas [Tesis, Pontificia Universidad Católica del Perú]. http://hdl.handle.net/20.500.12404/15004
Verde, E., Síntesis y caracterización de resinas alquídicas largas en aceite de sacha inchi (Plukeneteia volubilis L.) aplicadas para pinturas artísticas [Tesis]. PE: Pontificia Universidad Católica del Perú; 2019. http://hdl.handle.net/20.500.12404/15004
@mastersthesis{renati/29309,
title = "Síntesis y caracterización de resinas alquídicas largas en aceite de sacha inchi (Plukeneteia volubilis L.) aplicadas para pinturas artísticas",
author = "Verde Ramirez, Elizabeth Liz",
publisher = "Pontificia Universidad Católica del Perú",
year = "2019"
}
This thesis deals with the synthesis and characterization of long alkyd resins, using as a raw material sacha inchi oil (70% w / W). The resins were synthesized by polyesterification with pentaerythritol and phthalic anhydride or isophthalic acid, by two methods; alcoholysis and acidolysis. Long alkyd resins in flaxseed oil were synthesized by both methods for comparative purposes. Physicochemical properties of the resins were evaluated, such as acid number, viscosity, density and color. In addition, the obtaining of alkyd resins was confirmed by spectroscopic techniques of FTIR and 1 H-NMR. The synthesized resins were applied on glass and canvas, and the influence of the concentration of the cobalt surface secant on the drying time was studied. Finally, the thermal properties of the alkyd resins obtained were studied by thermogravimetric analysis. The results show that long alkyd resins in sacha inchi and flaxseed oils have similar physicochemical properties. However, a favorable effect of isophthalic acid on the acid number, viscosity and color of the resins, compared to phthalic anhydride, is observed. Long alkyd resins in sacha inchi oil have lighter colors than their similar ones based on flaxseed oil. Films obtained from synthesized resins have similar drying times. Sacha Inchi-based resins showed slightly greater thermal stability than flaxseed oil-based resins.
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