Polymeric Nanofibers Prepared from Self-Organized Supramolecules

A facile concept to prepare nano-objects based on self-organizing polymeric supramolecules (also called supramolecular block copolymers) is demonstrated using one particular shape, i.e., nanorods or nanofibers. Cylindrical aggregates consisting of a polystyrene (PS) core and a thin corona of poly(4-...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Chemistry of materials 2001-12, Vol.13 (12), p.4580-4583
Hauptverfasser: de Moel, K, Alberda van Ekenstein, G. O. R, Nijland, H, Polushkin, E, ten Brinke, G, Mäki-Ontto, R, Ikkala, O
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A facile concept to prepare nano-objects based on self-organizing polymeric supramolecules (also called supramolecular block copolymers) is demonstrated using one particular shape, i.e., nanorods or nanofibers. Cylindrical aggregates consisting of a polystyrene (PS) core and a thin corona of poly(4-vinylpyridine) (P4VP) chains are prepared from P4VP(pentadecylphenol)-block-PS comb-coil supramolecules. Diblock copolymers P4VP-block-PS are stoichiometrically (with respect to the number of pyridine groups) hydrogen-bonded with pentadecylphenol (PDP) amphiphiles to yield P4VP(PDP)-block-PS comb-coil supramolecules. By the selection of appropriate relative block lengths for P4VP(PDP) and PS, a micro-phase-separated cylindrical morphology of PS cylinders inside a P4VP(PDP) matrix is obtained. Subsequent removal of the amphiphiles, accounting for ca. 75% of the matrix material, results in cylinders with a core of PS and a corona of easily adjustable thickness of P4VP. The advantages of the present concept compared to the existing procedures are discussed.
ISSN:0897-4756
1520-5002
DOI:10.1021/cm0110932