Xu, J. ; Bellas, V. ; Jungnickel, B.-J. ; Stühn, B. ; Rehahn, M. (2011)
A Novel Crystallization Scheme in Polystyrene-block-(ferrocenyl dimethylsilane)] Diblock Copolymers.
In: MACROMOLECULAR CHEMISTRY AND PHYSICS, 211 (21)
doi: 10.1002/macp.201000220
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Isothermal crystallization of the poly(ferrocenyl dimethylsilane) (PFDMS) segments in a polystyrene-block-(ferrocenyl dimethylsilane)] (PS-b-PFDMS) diblock copolymer of lamellar micro-morphology has been investigated. The PFDMS is shown to crystallize in a confined and grain-by-grain fashion. Here a `grain' is defined as an ensemble of stacked lamellae wherein the PFDMS crystallization spreads quickly but stops at its surroundings. Such crystallization propagates not only along the PFDMS lamellae but across the amorphous PS layers as well. We suggest that conformational changes in the PS as induced by the PFDMS crystallization ('squeezing transfer') are responsible for the latter pathway of the crystallization's spread.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Xu, J. ; Bellas, V. ; Jungnickel, B.-J. ; Stühn, B. ; Rehahn, M. |
| Art des Eintrags: | Bibliographie |
| Titel: | A Novel Crystallization Scheme in Polystyrene-block-(ferrocenyl dimethylsilane)] Diblock Copolymers |
| Sprache: | Englisch |
| Publikationsjahr: | 11 Mai 2011 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | MACROMOLECULAR CHEMISTRY AND PHYSICS |
| Jahrgang/Volume einer Zeitschrift: | 211 |
| (Heft-)Nummer: | 21 |
| DOI: | 10.1002/macp.201000220 |
| Kurzbeschreibung (Abstract): | Isothermal crystallization of the poly(ferrocenyl dimethylsilane) (PFDMS) segments in a polystyrene-block-(ferrocenyl dimethylsilane)] (PS-b-PFDMS) diblock copolymer of lamellar micro-morphology has been investigated. The PFDMS is shown to crystallize in a confined and grain-by-grain fashion. Here a `grain' is defined as an ensemble of stacked lamellae wherein the PFDMS crystallization spreads quickly but stops at its surroundings. Such crystallization propagates not only along the PFDMS lamellae but across the amorphous PS layers as well. We suggest that conformational changes in the PS as induced by the PFDMS crystallization ('squeezing transfer') are responsible for the latter pathway of the crystallization's spread. |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik > Institut für Festkörperphysik (2021 umbenannt in Institut für Physik Kondensierter Materie (IPKM)) > Experimentelle Physik kondensierter Materie 05 Fachbereich Physik > Institut für Festkörperphysik (2021 umbenannt in Institut für Physik Kondensierter Materie (IPKM)) 05 Fachbereich Physik |
| Hinterlegungsdatum: | 17 Mai 2011 04:55 |
| Letzte Änderung: | 05 Mär 2013 09:47 |
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