Effect of strain rate on the behavior of three-dimensional polymers of oligoesteracrylates under the conditions of the uniaxial elongation

For three-dimensional polymers based on the dimethacryloil derivatives adipic and sebasinoil acids and dicarbonyloxyethylene we have established the influence of the deformation velocity ( V ε ) on their behaviour under the conditions of the uniaxial elongation. With the increase of V ε up to a distinct value of V ε l , the ultimate stress σ m for of the polymers grows, but at V ε > V εl the value of σ m decreases. This phenomenon is explained. With the rise of V ε , the module of elasticity E 1 increases and the curves σ(ε) are shifted to the left along the ε axis. The change of the character of the structural organization of three-dimensional polymers in the deformation process of their samples was established.