Sanger, J. ; Gronski, W. ; Maas, S. ; Stühn, B. ; Heck, B. (1997)
Structural transition in a nematic LC block copolymer induced by the transition to the LC phase.
In: Macromolecules, 30 (22)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The morphology of a liquid-crystalline ABA triblock copolymer with polystyrene (PS) blocks (12 vol %) and a side chain nematic liquid crystalline B block has been studied by TEM and temperature dependent SAXS measurements. Above the clearing temperature (T-c = 122 degrees C) the morphology is characterized by a body-centered cubic (bcc) lattice of polystyrene spheres. The transition to the nematic phase induces a reversible transition to a morphology of hexagonally packed cylinders by coalescence of the PS spheres along the [1,1,1] direction of the bcc lattice.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 1997 |
| Autor(en): | Sanger, J. ; Gronski, W. ; Maas, S. ; Stühn, B. ; Heck, B. |
| Art des Eintrags: | Bibliographie |
| Titel: | Structural transition in a nematic LC block copolymer induced by the transition to the LC phase |
| Sprache: | Englisch |
| Publikationsjahr: | November 1997 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Macromolecules |
| Jahrgang/Volume einer Zeitschrift: | 30 |
| (Heft-)Nummer: | 22 |
| Kurzbeschreibung (Abstract): | The morphology of a liquid-crystalline ABA triblock copolymer with polystyrene (PS) blocks (12 vol %) and a side chain nematic liquid crystalline B block has been studied by TEM and temperature dependent SAXS measurements. Above the clearing temperature (T-c = 122 degrees C) the morphology is characterized by a body-centered cubic (bcc) lattice of polystyrene spheres. The transition to the nematic phase induces a reversible transition to a morphology of hexagonally packed cylinders by coalescence of the PS spheres along the [1,1,1] direction of the bcc lattice. |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik > Institut für Festkörperphysik (2021 umbenannt in Institut für Physik Kondensierter Materie (IPKM)) 05 Fachbereich Physik |
| Hinterlegungsdatum: | 27 Feb 2010 12:34 |
| Letzte Änderung: | 05 Mär 2013 09:32 |
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