Polycondensation is one of the fundamental components of "Polymer Chemistry"

and its basic rules and characteristics are introduced mainly by linear polycondensation in domestic textbooks. Therefore

the synthesis kinetics of a typical linear polycondensation product

Polyethylene glycol adipate (PEA)

becomes a main content of "Polymer Chemistry Experiment". Melt polycondensation kinetics experiment is included in the course of "Polymer Chemistry Experiment" of Sichuan University

which studies on the kinetics of melt polycondensation in the synthesis of linear polyester PEA under the condition of acid catalysis. In this paper

some problems in data processing havebeenanalyzed

a measure of improvement is put forward to solve the problems. Two different methods are used to calculate the reaction rate constant k and the activation energy E

under the condition of changing temperature. Finally

the differences between the experiment results are compared before and after the improvement.