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Physical Chemistry

University of Colorado, Boulder

Bent core

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Nanostructures Of Liquid Crystal Phases, Dong Chen Jan 2012

Nanostructures Of Liquid Crystal Phases, Dong Chen

Physics Graduate Theses & Dissertations

Bent-core liquid crystals have attracted intense interest in recent years, exhibiting a wide variety of novel structural phenomena involving the interplay of chirality, molecular bend and molecular tilt. Freeze-fracture transmission electron microscopy together with other experimental methods has been used to characterize the nanostructures of bent-core liquid crystal phases in which the molecules undergo complex self-assembly, forming, for example, helical nanofilaments (the B4 phase), disordered focal conics (the DC phase), and layer undulations (the B7 phase) in the bulk. These studies have helped us better understand the complex nature of these and other liquid crystal phases. For example, the investigation ...