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Information × Registration Number 0208U005408, 0107U002966 , R & D reports Title Hard polymeric electrolyte based on polymeric quaternary ammonium salts for lithium sources of power popup.stage_title Head Burmistr Mikha'lo, Registration Date 06-05-2008 Organization State higher educational entity "Ukrainian State University of Chemical Technology" popup.description2 Object of examination - synthesis of polyionenes (polymeric quaternary ammonium salts) high-performance ionic conductivities, definition of character of ionic aggregation and its influence on morphology and relaxation behaviour polyionenes. The purpose of examination - making of solid polymeric electrolytes for lithium cells. For synthesized polyionenes reference only one temperature transition - glass transition - in temperature range from -45 up to 71оС. Values of glass transition grows with diminution of length of ethylenoxides fragment. Polyionenes with short ethylenoxides fragments (n=2-9) are amorphous, and at increase of amount of constitutional repeating units up to 20 the crystalline structure, reference for polyethylenoxides is shaped. In dielectric spectrums of polyionenes with low ionic concentration the dipole relaxation, bound with a local motion of molecular chains and relaxation of conductance is observed. For a surveyed series polyionenes a reference high level of an ionic conductivity, which is incremented with magnification of concentration of ionic centres (10-3 Sm/sm - 10-5 Sm/sm). Area of use: a chemical industry. Product Description popup.authors popup.nrat_date 2020-04-02 Close