Kinetics of reaction of C36 dimeric fatty acids and ethylenediamine in solution

Kinetic studies were carried out on the reaction between ethylenediamine and C36 dimeric fatty acids using benzyl alcohol as solvent. The reaction was performed at four different temperatures in the range of 160–190°C, and the products were analyzed for acid and amine values intermittently to follow the reaction. The fall in both the values was almost the same throughout the reaction. The kinetics was determined from the fall in acid value, and the reaction was found to be of overall third order and had an activation energy of 30.7 kcal mol−1 (128.5 kJ mol−1).