The aim of this work was to study the influence of various factors on the morphological point b-relaxation (which is a consequence of the structural relaxation of the macromolecules chain links located in the interface area on the border of the crystalline and amorphous phase separation) and strain (due to the rotation of the slats in the process of deformation) transitions. Three of ethylene and 1-hexene copolymer decalin crystallized from solution and were subjected to mechanical and structural analysis. It has been found that the concentration of these copolymers is a parameter in a solution, allowing them to control morphology. It is shown that the main factors affecting the temperature of the b-relaxation transition are mezhlamellyarnoe distance and condition of the lamellar surface folding.