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An investigation of the pyrolysis kinetics of some aliphatic amino acids

“…In order to draw the experimental master plots of P(u)/P(u 0.5 ) against a from experimental data obtained under any heating rates, the knowledge of temperature as a function of a and the value of E for the process should be known in advance. The temperature integral, P(u), has no analytical solution and can be expressed by an approximation, which gives a high accuracy [17] PðuÞ ¼ exp ðÀuÞ ½uð1:00198882u þ 1:87391198Þ…”

A new Schiff base epoxy oligomer resin: Synthesis, characterization, and thermal decomposition kinetics

“…23,24 To draw the experimental master plots of P(u)/P(u 0.5 ) (P(u) is labeled as temperature integral, also P(u 0.5 ) is temperature integral at point a ¼ 0.5.) against a from experimental data obtained under different bs, an approximate formula 25 of P(u) with high accuracy is used:…”

Kinetics and Thermal Degradation Study of Optically Active and Thermally Stable Aromatic Polyamides with Flame-Retardancy Properties

“…The r was computed using the least squares method, by plotting the left-hand side of the eqs (16) and (8) versus À1=T (Figure 4 and Figure 6) and eq (13) versus ln T (Figure 7), respectively. [1][2][3][4][5][6][7][8] The n value which gave the best fit (r ¼ 1) was chosen as the order parameter for the decomposition stage of interest. From the intercept and linear slope of such stage, the A and E values were determined, the other kinetic parameters, ÁS (entropy of activation), ÁG (Gibbs free energy) and ÁH (enthalpy of activation) were computed using the relationships:…”

“…In many polymer applications, the ability to predict product lifetime is valuable because the costs of premature failure in actual end use can be high. [6][7][8] The synthesis and properties of chiral polymers is of particular interest from the viewpoint of material science. Most of the natural polymers such as polysaccharides and proteins are optically active.…”