RT Journal Article
T1 Thermal esterification of cinnamic and p-methoxycinnamic acids with glycerol to cinnamate glycerides in solventless media: A kinetic model.
A1 Molinero, Laura
A1 Ladero Galán, Miguel
A1 Tamayo, Juan José
A1 Esteban, Jesús
A1 García-Ochoa Soria, Félix
AB The thermal processes of the esterification of glycerol with cinnamic acid and with p-methoxycinnamic acid in the absence of organic solvents to obtain monocinnamoyl glycerols were studied. Esterification runs were performed batchwise, changing the initial molar ratio of acid to glycerol from 1:3 to 1:9, and temperature from 150 to 200 °C. Under such conditions, systems proved to be monophasic, obtaining almost quantitative acid conversion and a significant selectivity to monoesters (80–90%). Apart from the esterification reactions, experimental conditions and data suggest the presence of glycerolysis and disproportionation reactions. Several kinetic models were fitted to experimental data and statistical and physical criteria were used to select the most adequate: a model with esterification and reversible glycerolysis reactions. When results and parameter values for both acids were compared, their kinetic behaviour in these processes resulted similar in the experimental conditions tested.
PB Elsevier
YR 2013
FD 2013-06-01
LK https://hdl.handle.net/20.500.14352/129746
UL https://hdl.handle.net/20.500.14352/129746
LA eng
NO L. Molinero, M. Ladero, J.J. Tamayo, J. Esteban, F. García-Ochoa, Thermal esterification of cinnamic and p-methoxycinnamic acids with glycerol to cinnamate glycerides in solventless media: A kinetic model, Chemical Engineering Journal, Volume 225, 2013, Pages 710-719, ISSN 1385-8947, https://doi.org/10.1016/j.cej.2013.04.016.
NO Spanish Ministry of Science and Innovation
DS Docta Complutense
RD 20 ene 2026