To Be or Not To Be Polar: The Ferroelectric and Antiferroelectric Nematic Phases
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Engineering topics
Walker, Rebecca
Publications and source records attributed to Walker, Rebecca.
Recycling polymer composite granulate/regrind using big area additive manufacturing
Not Available
42 ENGINEERING↗
Intrinsically Chiral Twist‐Bend Nematogens: Interplay of Molecular and Structural Chirality in the N TB Phase
Abstract Non‐symmetric lactate‐based chiral liquid crystal dimers containing an odd‐membered spacer are shown to exhibit a chiral twist‐bend nematic phase which is stable on cooling to room temperature. A comparison of racemic and optically pure materials reveals that the pitch length in the N* TB phase is not influenced by molecular chirality, whereas the nematic‐twist‐bend nematic transition temperature is increased.
Chemistry↗
Photonic Bandgap in Achiral Liquid Crystals—A Twist on a Twist
Abstract Achiral mesogenic molecules are shown to be able to spontaneously assemble into liquid crystalline smectic phases having either simple or double‐helical structures. At the transition between these phases, the double‐helical structure unwinds. As a consequence, in some temperature range, the pitch of the helix becomes comparable to the wavelength of visible light and the selective reflection of light in the visible range is observed. The photonic bandgap phenomenon is reported for achiral liquid crystals.
36 MATERIALS SCIENCE↗