Abstract
An alternating copolymer with the formula α-hydro-ω-oligo(oxyethylene)hydroxy poly[oligo(oxyethylene)oxydimethylsilylene] and a molecular weight of 9 860 was synthesized. Doping of this polymer with the extremely anhydrous salt δ-MgCl 2 resulted in a new magnesium complex with the formula poly[PEG400-alt-DEOS]/ (MgCl 2 ) 0.2597 . The structural hypothesis for the polymer was proposed on the basis of elemental analyses and molecular weight. Detailed 1 H, 13 C and 29 Si NMR spectral investigations fully confirmed the structure of poly[PEG400-alt-DEOS]. Mid-infrared FT-IR studies of the polymer showed that it presents 1) a sufficient number of terminal hydroxyl groups to confer a substantial degree of dissolution and salt-dissociation in the polymer complex; and 2) polyether fragments in a conformational geometry close to trans-gauche-trans. The conductivity against temperature plot for this very amorphous magnesium polymer complex demonstrated that the material conducts ionically by means of two types of charge- migration mechanisms.
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