Molecular Model for Polymer Fiber Behavior in Active Media under Load

A model is proposed describing changes in the polymer fiber structure in active media under load. Characteristic times of diffusion, melting, and deformation processes are estimated. The two processes of media diffusion and deformation of the amorphous parts of the fiber play the main role in the structural changes. Optimizing the correlation between the characteristic times of diffusion and deformation can yield an abnormal increase in fiber lifetime.