Abstract

A study is made of the diffusion of a stabilizing agent in different grades of polyethylene during its extraction by water at elevated temperatures. It is established that it is problematic to use the resulting experimental data to evaluate the kinetics of extraction of the agent in water at room temperature. Characteristics of the agent’s diffusion in the polymer are calculated and an evaluation is made of the effect of the polymer’s structure on the diffusion of the agent at different water temperatures.

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