Kinetics of reaction of C<sub>21</sub> cycloaliphatic dicarboxylic acid and ethylenediamine

Kale, Vijay; Vijayalakshmi, P.; Rao, T. C.; Subbarao, R.; Lakshminarayana, G.; Rao, M. Bhagwant

doi:10.1002/app.1989.070380708

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…Table 4 shows the activation energy ( E a ) and the frequency factor ( A E ) for the forward rate constants. By comparing the present values with the published ones2–5,12,13 it can be concluded that the current values for the rate constants and the Arrhenius parameters of the forward reaction are nearly comparable. However, for the reverse reaction and the equilibrium rate constant there are no published literature values to make a comparison.…”

Section: Resultssupporting

confidence: 70%

Kinetics of Polymerization of Dimer Fatty Acids with Ethylenediamine After 90% Conversion

Heidarian

Ghasem

Daud

2005

Macro Chemistry & Physics

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Summary: Today, hot melt adhesives are used in a variety of manufacturing processes, including bookbinding, product assembly and box and carton heat sealing. Understanding the kinetics of the process is of great importance. In this work, the kinetics for the polymerization of dimer fatty acids and ethylenediamine after 90% conversion were investigated. The rate equation used was based on a third order expression after 90% conversion. The reaction temperature was in the range 435–475 K. The parameters of the rate equations were determined using non‐linear regression analysis. Comparison of the model predictions with the experimental data showed that the approach was useful for predicting the polymerization kinetics. The frequency factor and the activation energy for the forward rate constant after 90% conversion were 93 339.62 kg · mol−1 · min−1 and 53.40 kJ · mol−1, respectively. The reverse rate constant was almost zero.

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Section: Resultssupporting

confidence: 70%

Kinetics of Polymerization of Dimer Fatty Acids with Ethylenediamine After 90% Conversion

Heidarian

Ghasem

Daud

2005

Macro Chemistry & Physics

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Kinetics of reaction of C₃₆ dimer acids with diethylenetriamine and triethylenetetramine for reactive polyamides

Kale

Vedanayagam

Subbarao

et al. 1994

J of Applied Polymer Sci

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SYNOPSISKinetic studies were carried out on the reaction between dimer acids and diethylenetriamine (DETA) and triethylenetetramine (TETA) in melt phase. The reactions were performed at temperatures in the range of 145" to 190°C and followed by determination of the acid and amine values of the intermittent products. The polyamidation reactions of C36 dimer acids and DETA and TETA followed overall second-order kinetics and had activation energies of 14.4 kcal/g mol and 12.3 kcal/g mol, respectively.

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Kinetics of polymerization of dimer fatty acids with ethylenediamine

Heidarian

Ghasem

Daud

2004

J of Applied Polymer Sci

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A generally applicable stoichiometric and kinetic model was developed for the polymerization of dimer fatty acids with ethylenediamine. The rate equations were second-order before 90% conversion and were used between 405 and 475 K. The parameters of the rate equations were determined with nonlinear regression analysis. A comparison of the model predictions and the experimental data showed that the approach was useful in predicting the polymerization kinetics. The equilibrium constant changed from 3.175 to 7.311. The frequency factor and activation energy for the forward rate constant before 90% conversion were 2,716,894 kg mol Ϫ1 min Ϫ1 and 66.7 kJ mol Ϫ1 , respectively. The equilibrium constant was independent of the temperature at frequency factor and activation energy values of 74.4 and 9.7 kJ mol Ϫ1 , respectively.

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Kinetics of reaction of C₂₁ cycloaliphatic dicarboxylic acid and ethylenediamine

Cited by 6 publications

References 5 publications

Kinetics of Polymerization of Dimer Fatty Acids with Ethylenediamine After 90% Conversion

Kinetics of Polymerization of Dimer Fatty Acids with Ethylenediamine After 90% Conversion

Kinetics of reaction of C₃₆ dimer acids with diethylenetriamine and triethylenetetramine for reactive polyamides

Kinetics of polymerization of dimer fatty acids with ethylenediamine

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Kinetics of reaction of C21 cycloaliphatic dicarboxylic acid and ethylenediamine

Cited by 6 publications

References 5 publications

Kinetics of Polymerization of Dimer Fatty Acids with Ethylenediamine After 90% Conversion

Kinetics of Polymerization of Dimer Fatty Acids with Ethylenediamine After 90% Conversion

Kinetics of reaction of C36 dimer acids with diethylenetriamine and triethylenetetramine for reactive polyamides

Kinetics of polymerization of dimer fatty acids with ethylenediamine

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Product

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Kinetics of reaction of C₂₁ cycloaliphatic dicarboxylic acid and ethylenediamine

Kinetics of reaction of C₃₆ dimer acids with diethylenetriamine and triethylenetetramine for reactive polyamides