Block copolymer ordering in cylindrical capacitors

U. Welling, M. Müller, H. Shalev, Y. Tsori

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We investigate the morphologies of block copolymers confined in the region between two concentric and charged cylinders. The relative stability of a concentric lamellar phase compared to one where the lamellae are oriented in the radial direction is determined from the competition between long-range elastic and electrostatic forces. We find in weak and strong segregation and by single-chain-in-mean-field simulations that under sufficiently strong voltage difference there is a phase transition from concentric to radial lamellae containing defects. Above a threshold voltage the block copolymer melt develops an interfacial instability at a finite wavelength.

Original languageEnglish
Pages (from-to)1850-1864
Number of pages15
JournalMacromolecules
Volume47
Issue number5
DOIs
StatePublished - 11 Mar 2014

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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