After adding plasticizers, the thermal stability of the polymer

I feel that it can be said.
It can be said that degradation is the starting of the end, the increase in the rear end of the plasticizer is stronger, and it is easier to expose to the surface, resulting in a decrease in the degradation temperature.

To determine whether the heating weight caused by the decomposition or evaporation of the plasticizer, it is also possible that the small molecule will produce active substances after decomposition and cause polymer degradation.

Not necessarily, plasticizers are small molecules, and thermal stability is worse than large molecules.