Accession Number : ADA254815


Title :   Solvation of Cobalt Salts by Oligomeric Polyethers


Descriptive Note : Technical rept. 31 May 1991-30 Jun 1992,


Corporate Author : PENNSYLVANIA UNIV PHILADELPHIA DEPT OF CHEMISTRY


Personal Author(s) : Mendolia, M S ; Farrington, G C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a254815.pdf


Report Date : 12 Jun 1992


Pagination or Media Count : 12


Abstract : Polyether-salt systems involving CoBr2 dissolved in oligomeric polyethylene glycol (PEG) and polytetra-methylene glycol (PTMG) have been investigated. Both systems demonstrated conductivity maxima as a function of salt concentration. PTMG electrolytes had dramatically lower conductivities (max. sigma approx. 3.6 x 10 7 Scm for PTMG, max. sigma approx. 1.45 x 10-5 Scm for PEG at room temperature) which can be explained on the basis of spectral data which indicate the existence of predominantly neutral species in PTMG. The reason for the difference in the types of species present in PEG and PTMG can be rationalized on the basis of the chelate effect.


Descriptors :   *SOLVATION , *OLIGOMERS , *COBALT , *POLYETHERS , FUNCTIONS , IONS , CONDUCTIVITY , GLYCOLS , COMPLEX IONS , POLYETHYLENE , NEUTRAL , POLYMERS , ROOM TEMPERATURE , ELECTROLYTES , SALTS


Subject Categories : Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE