Polymer-polymer blends based on crazed polymers

A method for the development of polymer-polymer blends based on crazed polymer matrices prepared by classical and delocalized crazing is considered. General features of formation of the structure of such blends and specific features of their sorption, mechanical, and electrical properties are discussed. The above polymer-polymer blends are similar to interpenetrating polymer networks and are characterized by microphase separation into two continuous phases with a high level of dispersion of the components. A distinctive property of the blends based on solvent-crazed polymers concerns the molecular orientation of components and the possible development of anisometric structures with different distributions of the components in the volume of polymer samples. Varying the mode of solvent crazing and the conditions of tensile drawing of the initial polymer allows one to control the composition, structure,nd properties of the polymer-polymer blends.