Optical fibres synthesis

One of such unique coatings is Diamond Like Carbon (DLC). The conventional synthesis of synthetic diamonds requires extremely high temperatures and pressures. By PECVD, Diamond Like Carbon is created under mild conditions by the decomposition of methane in H2/CH4 mixture. The applications of DLC are numerous coatings for cutting tools, optical fibres, electronic devices for reading magnetic tapes, or even protective coatings in chemical reactors. 

Kashima T, Matsuda Y, Fujiyama H (1991) Development of the quadrupole plasma chemical vapour deposition method for low temperature, high speed coating on an optical fibre. Mater Sci Eng A 139 79-84 Kaya C, He JY, Gu X, Butler EG (2002) Nanostructured ceramic powders by hydrothermal synthesis and their applications. Microporous Mesoporous Mater 54 37-49... 

Makedonski P., Brandesa M., Grahnb W., Kowalsky W., Wichem J., Wiese S., Johannes H., Synthesis of new kinds of reactive azo dyes and their application for fibre-optical pH-measurements, Dyes and Pigments 2004 61 109-119. 

The first reported attempts of what was then called "absolute or total asymmetric synthesis" with chiral solid catalysts used nature (naturally ) both as a model and as a challenge. Hypotheses of the origin of chirality on earth and early ideas on the nature of enzymes strongly influenced this period [15]. Two directions were tried First, chiral solids such as quartz and natural fibres were used as supports for metallic catalysts and second, existing heterogeneous catalysts were modified by the addition of naturally occuring chiral molecules. Both approaches were successful and even if the optical yields were, with few exceptions, very low or not even determined quantitatively the basic feasibility of heterogeneous enantioselective catalysis was established. 

Fast firing, 295 Fayalite, 307, 387 Feldspars, 42—45 Ferric oxide, 32 Ferrite ceramics, 328—333 Ferrites, 328—331,379—380 synthesis of, 331 — 332 Ferroelectric ceramics, 322—327 Ferroelectric glass-ceramics, 236 Ferromagneticceramics, 328—333 Fibre optics, 216 Fibreous insulations, 394 Fibres, 215-217 Fictive temperature, 58 Fireclay, 34, 370-371 Fireclay brick, deformation of, 356—358 Fireclay refractories, 370—373 Firing, 273—297 fast, 295... 

Hardware sensors for the on-line monitoring of polymerization such as in batch reactors have been reviewed (Kammona et al. 1999). In Section 3.4 the use of ruggedized conversion sensors for fibre-optic near-infrared (NIR) spectroscopy during extrusion was described. In many ways, the requirements are simpler than for control of a batch reaction (as in a polymer-synthesis autoclave) since... 

The starting material for many of the triazine-based fibre-reactive dyes is cyanuric chloride (cf. Houben-Weyl, Vol. 10/3, p 391 ff Vol. 11/1, p 70ff>- These dyes are prepared by nucleophilic displacement of one or two chlorine atoms with one or two dye molecules. As the last step, the product is bound to the textile by reacting the third chlorine with the hydroxy groups in cellulose fibre or with the amino functions in polyamides, wool, and silk. Many reviews are available.85 95 Cyanuric chloride is also used in the synthesis of optical brighteners.92 94... 

The morphology of ordered mesostructured carbons is another important factor with respect to their practical applications. Various macroscopic morphologies are required, for example, films (in sensor, separation and optical applications), uniformly sized spheres (in chromatography) or transparent monoliths. Using suitable synthesis strategies, it is possible to control the external shape of the templated mesoporous carbon materials to generate powders, films and membranes, spheres, hollow spheres, rods, fibres, nanowires, nanotubes and monoliths. 

Convenient multigram synthesis of monodisperse oligo(ethylene glycols) effective reaction monitoring by infrared spectroscopy using an attenuated total reflection fibre optic ptrobe. Tetrahedron Letters Vol.50, pp. 6469-6471, ISSN 0040-4039... 

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