摘要

A new type of time-temperature integrator based on doping front migration is reported in this study. The migration length of the doping front in a mixed water-borne polyaniline and hydrophilic polymer layer integrates the information of time and temperature. The result shows that the migration length is function of time and temperature. This new type of time-temperature integrator is a thermo-sensitive, system that can show the quality change of food add its shelf life Well.