Fractal models of solid polymers thermooxidative degradation

One can assume the following reason of pseudomonomolecular reaction elapsion just in loosely packed regions of PBT and PBT+Z compositions. Roughly speaking, pseudomonomolecular reaction assumes the interaction of two polymeric macromolecules in thermal degradation process and this means the necessity of molecular mobility definite degree ensuring indi­cated interaction. As it was known [15], in contrast to zero molecular mo­bility can be realized only in loosely packed regions of semicrystalline polymers.