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The interactions of poly(1,3,6,9-tetraoxacycloundecane) (PTGF) and poly(1,3,6-trioxacyclooctane) (PDGF) with sodium dodecyl sulphate (SDS) were studied by conductimetry, viscosimetry and fluorescence. The results are compared to those obtained in the cases of poly(ethyleneoxide) (PEO) and poly(1,3-dioxolane) (PDXL). The total amount of SDS bound along the polymer chain is found to decrease when the...
The ionic behavior of an aromatic lithium sulfonyl imide, i.e. lithium bis(4nitrophenyl)sulfonylimide, has been investigated in an amorphous poly(oxyethylene) network and compared to that of usual lithium salts dissolved in the same host polymer. The NO 2 groups which are substituents at both phenyl groups, are expected to induce a strong electron-withdrawing effect on the imide negative charge...
A new lithium salt, lithium bis(4-nitrophenyl)sulfonylimide ie (p-NO 2 C 6 H 4 SO 2 ) 2 NLi (LiNPSI), has been synthesized. The thermal and conductivity behaviour of two types of polymer electrolytes prepared therefrom have been studied. An amorphous polyurethane network based on short poly(ethyleneoxide) (PEO) segments was first used as a solvent: the polymer...
A sample of linear poly(1,3,6,9-tetraoxacycloundecane) ([-CH 2 -CH 2 O) 3 -CH 2 O-] n , (PTGF)) of molecular weight 35 000 was synthesized by cationic polymerization. The oligomeric cycles were eliminated by successive precipitations. This PTGF sample was studied at pure state by differential scanning calorimetry and dilatometry. In the amorphous state, the...
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