TY - JOUR
T1 - Influence of steric effects on the kinetics of cyclic-carbonate vegetable oils aminolysis
AU - Agudelo, Andrés Felipe Guzmán
AU - Pérez-Sena, Wander Y.
AU - Kebir, Nasreddine
AU - Salmi, Tapio
AU - Ríos, Luis Alberto
AU - Leveneur, Sébastien
N1 - Post-print, 24 mån embargo, CC-BY-NC-ND
begärt fulltext [email protected] (ALG)
PY - 2020
Y1 - 2020
N2 - Polyurethane polymer is more and more famous because of its versatile properties. The current production process requires the use of isocyanate, which is a hazardous chemical. An alternative eco-friendly route of production is the aminolysis reaction between a cyclic-carbonate, from carbonated vegetable oil, and a diamine. Nevertheless, the kinetics of this reaction system is slow, which might be due to steric hindrance. In order to predict and evaluate this steric hindrance, different amines were tested for the aminolysis of carbonated methyl oleate. Four amines were used: n-butylamine, methylbutylamine, ethylbutylamine and dibutylamine. Kinetic models for the aminolysis with each amine were developed. A relationship between structure and reactivity of each substituent was found through the concept of Linear Free Energy Relationships.
AB - Polyurethane polymer is more and more famous because of its versatile properties. The current production process requires the use of isocyanate, which is a hazardous chemical. An alternative eco-friendly route of production is the aminolysis reaction between a cyclic-carbonate, from carbonated vegetable oil, and a diamine. Nevertheless, the kinetics of this reaction system is slow, which might be due to steric hindrance. In order to predict and evaluate this steric hindrance, different amines were tested for the aminolysis of carbonated methyl oleate. Four amines were used: n-butylamine, methylbutylamine, ethylbutylamine and dibutylamine. Kinetic models for the aminolysis with each amine were developed. A relationship between structure and reactivity of each substituent was found through the concept of Linear Free Energy Relationships.
KW - NIPU
KW - Cyclic carbonate
KW - Aminolysis
KW - Vegetable oils
KW - Kinetic modeling
KW - Structure reactivity
U2 - 10.1016/j.ces.2020.115954
DO - 10.1016/j.ces.2020.115954
M3 - Article
SN - 0009-2509
VL - 228
JO - Chemical Engineering Science
JF - Chemical Engineering Science
M1 - 115954
ER -