An alternating copolymer with the formula alpha-hydro-omega-oligo(oxyethylene)hydroxy poly[oligo(oxyethylene)oxydimethylsilylene] and a molecular weight of 9860 was synthesized. Doping of this polymer with the extremely anhydrous salt delta-MgCl2 resulted in a new magnesium comples with the formula poly[PEG400-alt-DEOS]/(MgCl2)0.2597. The structural hypothesis for the polymer was proposed on the basis of elemental analyses and molecular weight. Detailed H-1, C-13 and Si-29 NMR spectral investigations fully confirmed the structure of poly[PEG400-alt-DEOS], Mid-infrared FT-IR studies of tehj polymer showed that is presents 1) a sufficient number of terminally hydroxyl groups to confer a substantial degree of dissolution and salt-dissociation in the polymer ocmplex; and 2) polyether fragments in a conformational geometry close to trans-gauche-trans. The conductivity against temperature plit for this very amorphous magnesium polymer complex demonstrated that the material conducts ionically by means of two typed of charge migration mechanisms.

Synthesis and characterization of [PEG400-alt-DEOS]/(delta-MgCl2)0.2597 complex

DI NOTO, VITO;LAVINA, SANDRA
2002

Abstract

An alternating copolymer with the formula alpha-hydro-omega-oligo(oxyethylene)hydroxy poly[oligo(oxyethylene)oxydimethylsilylene] and a molecular weight of 9860 was synthesized. Doping of this polymer with the extremely anhydrous salt delta-MgCl2 resulted in a new magnesium comples with the formula poly[PEG400-alt-DEOS]/(MgCl2)0.2597. The structural hypothesis for the polymer was proposed on the basis of elemental analyses and molecular weight. Detailed H-1, C-13 and Si-29 NMR spectral investigations fully confirmed the structure of poly[PEG400-alt-DEOS], Mid-infrared FT-IR studies of tehj polymer showed that is presents 1) a sufficient number of terminally hydroxyl groups to confer a substantial degree of dissolution and salt-dissociation in the polymer ocmplex; and 2) polyether fragments in a conformational geometry close to trans-gauche-trans. The conductivity against temperature plit for this very amorphous magnesium polymer complex demonstrated that the material conducts ionically by means of two typed of charge migration mechanisms.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/1343898
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