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Issue 37, 2017
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Achiral flexible liquid crystal trimers exhibiting gyroid-like surfaces in chiral conglomerate phases

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Abstract

Chiral conglomerate phases have attracted much attention not only for the spontaneous mirror symmetry breaking but also for their nanostructures. We investigated both surface and bulk structures of a homologues series of an achiral liquid crystal trimer I-(n,m) exhibiting soft crystalline chiral conglomerate phases by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The trimers were found to form bicontinuous networks. In particular, trimer I-(9,9) exhibited a single gyroid-like surface accompanying periodic distribution of dimples with a size of about 100 nm. It showed a sponge-like structure in the bulk of the material. The twist conformation of the flexible trimer I-(n,m) can cause layer deformation, which produces bicontinuous networks exhibiting optical activity.

Graphical abstract: Achiral flexible liquid crystal trimers exhibiting gyroid-like surfaces in chiral conglomerate phases

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Publication details

The article was received on 27 Jul 2017, accepted on 27 Aug 2017 and first published on 29 Aug 2017


Article type: Paper
DOI: 10.1039/C7SM01499F
Citation: Soft Matter, 2017,13, 6521-6528
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    Achiral flexible liquid crystal trimers exhibiting gyroid-like surfaces in chiral conglomerate phases

    H. Sasaki, Y. Takanishi, J. Yamamoto and A. Yoshizawa, Soft Matter, 2017, 13, 6521
    DOI: 10.1039/C7SM01499F

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