BIOREACHABLE CHIRAL DOPANTS FOR LIQUID CRYSTAL APPLICATIONS

• Main Authors: TWIEG ROBERT J, NEPAL PAWAN, PALFFY-MUHORAY PETER, WEDIGE-FERNANDO ASHANI, RAJA SHILPA, SAFIR ADAM, ZOOMBELT ARJAN
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2021
• Subjects: ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The disclosure discusses chiral dopants for liquid-crystalline materials. Chiral dopants can be bioreachable compounds, i.e., compounds produced from microbes through fermentation. Chiral dopants can also include bioreachable materials that are further modified by chemical synthetic steps. Chiral dopants as discussed herein can include biomolecules such as glycyrrhetinic acid (1), S-narigenin (2), shikimic acid (3), alpha-phellandrene (4), betulin (5), malic acid (6), valencene (7), or nootkatone (8), and any stereoisomers or chemically modified derivatives thereof. The disclosure further shows optical properties of such compounds in a liquid-crystalline material. 本公开内容讨论了用于液晶材料的手性掺杂剂。手性掺杂剂可为生物可获得的化合物，即由微生物通过发酵产生的化合物。手性掺杂剂还可包括通过化学合成步骤进一步修饰的生物可获得的材料。本文所讨论的手性掺杂剂可包括生物分子，例如甘草次酸(1)、S-柚皮素(2)、莽草酸(3)、α-水芹烯(4)、桦木醇(5)、苹果酸(6)、瓦伦烯(7)或诺卡酮(8)，及其任何立体异构体或化学修饰的衍生物。本公开内容进一步示出了此类化合物在液晶材料中的光学特性。