Study of the structure and properties of paired polymers based on polytrichlorobutadiene and polystyrene

The effect of strong intermolecular and chemical interactions on the compatibility of polymers

“…However, indications of microphase separation were found in the studies of interpolymer films by physical methods. 75 Two separated peaks characteristic of PTCB and PS and shifted toward higher temperatures are observed in the plot of the temperature dependence of the loss factor tan d of the interpolymer. Two maxima characteristic of PS are also seen in the X-ray diffraction patterns of interpolymers isolated in the initial reaction stages; however, their intensities decrease as the extent of reaction increases.…”

“…Blends of PTCB with PS form transparent solutions up to a concentration of 10%; however, in studies of these blends by electron microscopy it was found 75 that phase separation of blend components occurs even in dilute solution. The interpolymer solution is also transparent; however, unlike the polymer blend, no indications of phase separation are observed in this case.…”

“…In studies of fractions A and B of interpolymers by dynamic mechanical analysis 75 it was shown that the formation of chemical bonds between the macromolecules decreases the mobility of each macromolecule. In the plot of temperature dependence of the loss factor tan d the peaks or their `shoulders', characteristic of PTCB and PS, are shifted toward higher temperatures as compared to those of the mechanical mixture.…”