Lysenkov E. The structure and properties of polymer electrolytes based on polyethers and anisometric nanofillers

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0411U003508

Applicant for

Specialization

  • 01.04.19 - Фізика полімерів

18-05-2011

Specialized Academic Board

Д 26.179.01

Institute of Macromolecular Chemistry of NAS of Ukraine

Essay

The object of research. The processes of structure forming, relaxation processes and ionic conductivity of polymer electrolytes based on polyeters and anisometric nanofillers. The establishment of the basic laws of the influence of anisometric nanofillers (carbon nanotubes and organoclay) on structure forming, relaxation processes and properties of polymer electrolytes based on polyethyleneglycol, polypropyleneglycol and LiClO4 was the purpose of the research. Research methods. Wide- and small angle of X-ray diffraction, differential scanning calorimetry, dielectric relaxation spectroscopy. Theoretical and practical results. It was established that nanofillers with the form's anisomery substantially influence on the processes of structure forming and properties of polymer electrolytes at their extremely low concentrations. It was shown that in the systems, filled bymontmorillonit there are processes of intercalation, while in the systems filled by laponite there are processes of complete exfoliation. These processes result in different influence on functional descriptions of polymer electrolytes. Practical importance of the obtained results. The laws of influence of nature and form's anisometry of nanofillers on a structure and physical properties of polymer electrolytes based on oligoethers and lithium salt create principles for the forecast adjusting of functional descriptions in the polymer electrolyte systems for a modern electrochemical equipment.

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