Numerical non-linear curve fitting

An automated DNLR model simplex method based minimization curve fitting procedure has been developed.

Procedure:

· Method to interpret the kinetics of structural relaxation.

· Integral method.

· Any continuous heating (cooling) or isothermal structural relaxation recovery of c_p,Ta,ta(T,t) is numerically predicted and fitted to the measured one.

· The more and variable independent structural relaxation responses are measured, the more reliable parameters ΔH⁺_DNLR, ΔS⁺_DNLR and K_DNLR are obtained.

· Knowing ΔH⁺_DNLR (by the Kissinger method, e.g.), this is the two-parameter curve fitting.

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