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Platinum liquid crystal properties

Liquid crystal polymers (LCPs) have been a source of considerable interest for some time, as they have been shown to offer particular advantages in terms of their processability and physical properties which make them attractive in a wide range of engineering applications.346 Serrano and his colleagues have reviewed metallomesogenic polymers, including the liquid crystalline properties of several of the platinum poly-yndiyl polymers described above.85,86... [Pg.273]

The synthesis of side-chain type liquid crystalline elastomer with properties of liquid crystal as well and is first reported by Finkelmarm et al. [52], The synthesis is carried out in one step via hydrosi-lylation reaction in mixture of divinyl dimethyl siloxane ologomers (crosslinking agent), vinyl LC monomer and platinum catalyst. The monomer gets incorporated in the crosslinked elastomer having... [Pg.289]

A handful of diplatinum(lll) aryl compounds with Pt(lll) - Pt(lll) bonds were made from oxidative C-H bond activation mediated by Pt(ll) precursors (203-205, Figure 10.22) [143], These compounds were studied as platinum models of Pd-catalyzed C-H bond functionalization (203) [143a], for their unique physical properties, for example, as a liquid crystal material (204) [143b] or a chi-roptical material (205) [143c],... [Pg.380]

CRT, the abbreviation for cathode-ray tube, was once a familiar acronym. Before liquid crystal display (LCD) was available, the CRT was the heart of computer monitors and TV sets. The first cathode-ray tube was made by Michael Faraday (1791-1867) about 150 years ago. When he passed electricity through glass tubes from which most of the air had been evacuated, Faraday discovered cathode rays, a type of radiation emitted by the negative terminal or cathode. The radiation crossed the evacuated tube to the positive terminal or anode. Later scientists found that cathode rays travel in straight lines and have properties that are independent of the cathode material (that is, whether it is iron, platinum, and so on). The construction of a CRT is shown in Figure 2-6. The cathode rays produced in the CRT are invisible, and they can be detected only by the light emitted by materials that they strike. These materials, called phosphors, are painted on the end of the CRT so that the path of the cathode rays can be revealed. Fluorescence is the term used to describe the emission of light by a phosphor when it is struck by... [Pg.39]

Kato K., Suzuki K., Fu D., Nishizawa K., Mild T. Chemical approach using tailored liquid sources for traditional and novel ferroelectric thin films. Jpn. J. Appl. Phys. 2002a 41 6829-6835 Kato K., Suzuki K., Nishizawa K., Miki T. Ferroelectric properties of alkoxy-derived CaBi4Ti40is thin films on Pt-Passivated Si. Appl. Phys. Lett. 2001 78 1119-1121 Kato K., Suzuki K., Fu D., Nishizawa K., Miki T. Platinum-assisted phase transition in bismuth-based layer-structured ferroelectric CaBi4Ti40i5 thin films. Appl. Phys. Lett. 2002b 81 3227-3229 Nishizawa K., Mild T., Suzuki K., Kato K. Control of crystallization and crystal orientation of alkoxy-derived SrBi2Ta209thin films by ultraviolet irradiation. J. Mater. Res. 2003 18 899-907 Sanchez C., Livage J., Henry M., Babonneau F. Chemical modification of alkoxide precursors. J. Non-Cryst. Solids 1988 100 65-76... [Pg.57]


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