130747-08-9Relevant academic research and scientific papers
Mixed cellulose-derived benzoates bonded on allylsilica gel as HPLC chiral stationary phases: Influence of the introduction of an aromatic moiety in the fixation substituent
Garces, Jordi,Franco, Pilar,Oliveros, Laureano,Minguillon, Cristina
, p. 1179 - 1185 (2003)
Several mixed alkenoxybenzoyl/benzoates and 10-undecenoyl/benzoates of cellulose were fixed onto allylsilica gel by the radical coupling of double bonds. The introduction of an aromatic group in the fixation substituent modifies the chiral recognition abi
Structure-properties relationships in liquid crystal thiols
Cseh, Liliana,Mehl, Georg
, p. 879 - 885 (2014/08/18)
Two new series of thiols were studied in order to establish the structure-properties relationships. First series consists of compounds with three or four aromatic rings as rigid part of mesogen and the second contains thiols with a flexible chain attached
Bent-core liquid crystal (LC) decorated gold nanoclusters: Synthesis, self-assembly, and effects in mixtures with bent-core LC hosts
Marx, Vanessa M.,Girgis, Hidy,Heiney, Paul A.,Hegmann, Torsten
supporting information; experimental part, p. 2983 - 2994 (2010/02/27)
We present the first synthesis of a series of thiol-, thioacetate-, and xanthate-terminated bent-core derivatives, as well as the preparation of gold nanoclusters using the thiol-terminated bent-core compounds. The mesomorphic properties of the bent-core compounds have been investigated by polarizing optical microscopy (POM), differential scanning calorimetry (DSC), small angle X-ray scattering (SAXS), and electro-optic tests. From this series, the mono-xanthate derivatives form rectangular or hexagonal columnar phases, and the mono-thiol derivative with shorter alkyl chains forms a metastable, likely smectic, phase. All other bent-core compounds and intermediates exclusively form disordered or multi-layer lamellar crystalline solid modifications. High-resolution transmission electron microscopy (HR-TEM) images of the bent-core functionalized gold nanoclusters prepared from the thiol-terminated derivatives, taken after slow evaporation of the solvent, provide evidence for the formation of self-assembled nanocluster arrays. Upon dispersion of these gold nanoclusters in two structurally related bent-core LC hosts (one forming a SmCPA, and the second with a terminal double bond displaying a Colr phase), a shift in the surface plasmon resonance was observed indicating a LC host-dependent aggregation of the nanoparticles. Finally, we report initial results on the effects of different concentrations of these nanoclusters on the thermal properties as well as the applied voltage/current response of the parent SmCPA host.
Liquid Crystalline Main Chain Polysiloxane Esters and their Monomers. Part I: Synthesis of some di(ω-unsaturated esters) and their thermal behaviour
Kossmehl, G.,Gerecke, B.,Harmsen, N.,Schroeder, F.,Vieth, H. M.
, p. 39 - 54 (2007/10/02)
As starting material for liquid crystalline polyesters, a number of bisarenes (arising from the diols hydroquinone, 4,4'-biphenyldiol, 1,6-di(4-hydroxyphenyl)hexane, 2,7-fluorenediol and 2,7-fluorenonediol) have been synthesize
Synthesis and chomatographic properties of liquid crystalline polysiloxanes containing steroid substituents
Adams, Nathan W.,Bradshaw, Jerald S.,Bayona, Jose-Maria,Markides, Karin E.,Lee, Milton L.
, p. 43 - 60 (2007/10/02)
A series of alkenyl-substituted cholesterol and related steroids have been prepared.These liquid-crystalline compounds were hydrosilylated onto polyhydromethylsiloxane.The polymers have a broad range of liquid crystallinity even if the starting alkenes ha
