Liquid crystal mixtures made of nanosheets and nonionic surfactants - INSU - Institut national des sciences de l'Univers Access content directly
Conference Papers Year : 2016

Liquid crystal mixtures made of nanosheets and nonionic surfactants

Abstract

Two dimensional (2D) atomic crystals or nanosheets resulting from the exfoliation of inorganic layered materials constitute exciting nano materials with fascinating properties showing transparency, semi-conductivity and a lamellar liquid crystal (LC) phase that can be easily aligned at a macroscopic scale with weak magnetic or electric fields.1 Stability and microstructure of these hybrid systems result from the interplay of the attractive and repulsive forces between the colloidal exfoliated nanosheets. A small variation in the intersheet molecular force balance caused by variations in nanosheet concentration, pH or ionic strength variation, may induce a re-organization in the system, for instance phase separation or aggregation via an exclusion mechanism.2 Thus, while keeping its LC properties, the mixing between niobate nanosheets and alkylpoly(ethylene oxide) nonionic surfactants (CnEm) that self-organize in a variety of distinct morphologies such as hexagonal, cubic, lamellar lyotropic liquid crystalline phases represents a certain challenge. 3-4
Fichier principal
Vignette du fichier
Conf.Invite.16-19Fev2016-Orlando-USA-EMN-Guegan.pdf (170.12 Ko) Télécharger le fichier
Origin Files produced by the author(s)
Loading...

Dates and versions

insu-01298102 , version 1 (05-04-2016)

Licence

Identifiers

  • HAL Id : insu-01298102 , version 1

Cite

Régis Guégan, N Miyamoto. Liquid crystal mixtures made of nanosheets and nonionic surfactants. EMN Meeting on Liquid Crystal 2016, Feb 2016, Orlando, United States. ⟨insu-01298102⟩
184 View
59 Download

Share

Gmail Mastodon Facebook X LinkedIn More