Mechanisms of Stack Interaction in Polymer Composites of Polyvinylchloride with Methylene Blue

The change in the degree of crystallinity and dynamic elastic, shear modulus in pure polyvinyl chloride (PVC) and its composites with methylene blue dye (MB) up to 0.07 vol. fract. were investigated with X-ray diffraction and the spread of high-frequency ultrasound methods. The characteristics change difficultly as the content of MB increases. The concentration behavior of these quantities is due to the destruction of the PVC monomer units and the emergence of various polyene (conjugate) systems capable of forming a stack interaction between the components of the composite PVC-MB.