Magnetic field induced orientation in diblock copolymers with one crystallizable block

T. Grigorova, S. Pispas, N. Hadjichristidis, T. Thurn-Albrecht*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Using wide-angle X-ray scattering, we show that diblock copolymers with one crystallizable block can be oriented by crystallization in a strong magnetic field (B = 7 T). The resulting structure consists of a stack of alternating crystalline and amorphous layers of different chemical compositions with the layer normal being oriented perpendicular to the applied field. As a necessary prerequisite the crystallization process has to start with a high nucleation density. Orientation parameters of about S ≈ -0.3 have been achieved. This approach presents a novel route to produce oriented chemically heterogeneous nanostructured materials.

Original languageEnglish (US)
Pages (from-to)7430-7433
Number of pages4
JournalMacromolecules
Volume38
Issue number17
DOIs
StatePublished - Aug 23 2005
Externally publishedYes

ASJC Scopus subject areas

  • Materials Chemistry

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