Authors Gottwald, A. ; Pospiech, D. ; Jehnichen, D. ; Häußler, L. ; Friedel, P. ; Pionteck, J. ; Stamm, M. ; Floudas, G.
Title Self-assembly and Viscoelastic Properties of Semifluorinated Polyesters
Date 10.04.2002
Number 10043
Abstract The structure and dynamics of polyesters composed from a rigid aromatic backbone and oxyalkylperfluoroalkyl side chains have been studied using differential scanning calorimetry, small- and wide-angle X-ray scattering, pressure-volume-temperature measurements and rheology. The system was found to undergo three phase transitions. Starting from lower temperatures they reflect the melting of the fluorinated side chains, the unfreezing of the backbone mobility and the melting of the smectic layered structure. In addition, rheology has shown that these compounds are thermorheologically complex at all temperatures investigated and exhibit non-Newtonian low-frequency response.
Publisher Macromolecular Chemistry and Physics
Wikidata 13
Citation Macromolecular Chemistry and Physics 203 (2002) 854-861
Tags fluoropolymers polyesters self-assembly structure viscoelastic properties liquid-crystalline phases copolymers polystyrene

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