Rheological and Microstructural Features of Phase Transitions in Composite Polymer Materials Based on Tar and Polyethylene
2014
The change in the structure of tarand polyethylene-based petroleum and polymer systems has been investigated by the methods of viscosity measurement and atomic force scanning microscopy. It has been established that the structural change of a composite petroleum and polymer thermoplastic material in the region of phase transitions of the 2nd kind results from the collapse of polymer coils and the formation of globules that subsequently aggregate. It has been shown using atomic-force-microscopy that a volume superlattice is formed from polymer globules in thermoplastic petroleum polymers in the region of phase transition of the 2nd kind.
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