Synthesis of liquid crystals

Strzelecki and coworkersfound that the use of (+) 3-methyladipic acid in the synthesis of liquid crystal polyesters led to a cholesteric polymer. They prepared a homopolymer and a series of copolyesters of the following structures ... 

Further uses of Novozyme 435 have been described in recent patent applications filed by the Mitsubishi Gas Chemical Company and comprise processes for the production of optically active secondary alcohols (Scheme 33) [98] and the manufacture of optically active chroman-2-carboxylic acids (Scheme 34) [99]. In the first case the resolution of racemic 4-isopropyloxy-2-butanol (rac-108) by Novo 435 was an important step toward (R)-(+)-4-(isopropyloxy)-2-bu-tanol ((R)-108) via acetate 109. Compound R)-10S can be used for the synthesis of liquid crystal materials. 

The Ref [202] reports on the synthesis of liquid-crystal polysulfone with mesogenic link - cholesterylpentoatesulfone. 

Lately, several papers on the synthesis of liquid-crystal polysulfones and on the production of mixes and melts of polysulfones with liquid-crystal polymers have appeared [201-205]. 

Lee, C.-H. Yamamoto, T. Synthesis of liquid crystals with bent-rod structure Mesogenic thiazole derivatives with long alkoxyl chains. Mol. Cryst. Liq. Cryst. 2001, 363, 77-84. 

The synthesis and mesogenic behaviour of many liquid crystalline polymers has been published however, in the vast majority of cases the molecular weights and polydispersities have not been determined. Accordingly, there are difficulties in truly relating mesogenic behaviour to polymer structure. The synthesis of liquid crystal polymers is considered in Chapter 8. 

Synthesis of Liquid Crystals—Strategies and Methods 179 Pd(PPh3)4, /r /=, ... 

The synthesis of liquid crystals is an essential area of the liqttid crystal field because without materials there can be no evaluation and no applications. However, it is more important to synthesise the right materials and initial design is therefore cradal. Accordingly, the meaningful synthesis of liquid crystals requires the input of scierrtists working in a wide variety of disciplines, such as chemists, physicists, engineers, mathematicians, theoreticians, and biologists. 

Hird, M., Gray, G.W., and Toyne, K.J. (1991) Cross-couphng Reactions in the Synthesis of Liquid Crystals. Molecular Crystals and Liquid Crystals, 206,187-204. 

Synthesis of Liquid Crystal Cyclic Oligomer and More Complex Cyclic Architectures... 

The contents of the project include (1) Synthesis of liquid crystal materials and its evaluation, (2) Synthesis of liquid crystalline polymers (LCP) and its evaluation,... 

Mormann W, Broche M, Schwarz P (1997) Mesogenic azomethine based diepoxides— monomers for the synthesis of liquid crystal thermoset networks. Macromol Chem Phys 198 3615-3626 Mossety-Leszczak B, Wlodarska M (2011) Liquid crystallinity in polymers—liquid crystalline epoxy resins. In Iwan A, Schab-Balcerzak E (eds) Liquid crystalline organic compounds and polymers as materials of the XXI century from synthesis to applications. Transworld Research Network, Kerala... 

Monomers used in the Synthesis of Liquid Crystal Aromatic Polyesters... 

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