Title

Director Configuration Of Liquid-Crystal Droplets Encapsulated By Polyelectrolytes

Abstract

Liquid-crystal 4-n-pentyl-4′-cyanobiphenyl (5CB) droplets dispersed in aqueous solution are prepared by the assembly of poly(styrenesulfonic acid) (PSSH) and poly(styrenesulfonate sodium) (PSSNa) at the 5CB/water interface. The micrometer sized PSSH-coated 5CB droplets in the space confinement formed by two parallel glass slides break up into submicrometer sized droplets under evaporation-induced flow. We find that the size reduction of the PSSH-coated droplets is accompanied by the bipolar-to-radial configuration transition of the 5CB in the droplets, while the PSSNa-coated 5CB droplets show no size-dependent configuration transition in the same size range. Our results suggest that the size-dependent director configuration of liquid-crystal droplets encapsulated by polyelectrolytes can be modulated by changing the interface conditions, which is important in designing liquid-crystal droplets for optical and biological applications. © 2009 American Chemical Society.

Publication Date

5-18-2010

Publication Title

Langmuir

Volume

26

Issue

10

Number of Pages

7025-7028

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/la904257j

Socpus ID

77952393658 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77952393658

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