TY - NEWS
TI - HYPERBRANCHED ALKYD RESINS OBTAINED FROM A HYPERBRANCHED POLYESTER POLYOL OF THE FIFTH GENERATION AND TALL OIL FATTY ACID
AU - Murillo  Ruiz, Edwin Alberto
AU - Raba Paez, Angela Mercedes
AB - The first aim of this study was to synthesize hyperbranched alkyd resins from tall oil fatty acids and a hyperbranched polyester polyol via an esterification reaction. The second aim was to evaluate the effect of the fatty acid proportion on the properties of the resins. The modification percentage of the hyperbranched polyester polyol was between 47.68 and 66.02%. Infrared analysis shows that the alkyd resins decreased the intensity of the OH group's vibration. This
decrease depends on the amount of TOFA used. Thermogravimetric and differential scanning calorimetry analyses
showed that the modification of the hyperbranched polyester improved the thermal stability and the mobility of the macromolecules of the alkyd resins respectively. The viscosity of the alkyd resins was less than 10 Pa.s. They exhibited Newtonian behavior and had the highest gloss values at 60° (between 90.1 and 91.6).
DA - 2023-09
KW - Hyperbranched Polyester Polyols
KW - Esterification
KW - Hyperbranched Resins
KW - Tall Oil Fatty Acids
KW - Properties
PB - Rasayan Journal of Chemistry
UR - https://repositorio.ufps.edu.co/handle/ufps/6759
ER -