1926
DOI: 10.1002/ange.19260393818
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V. D. M. A., Verein deutscher Maschinenbauanstalten und seine Mitglieder. 1926. VDI‐Verlag G. m. b. H., Berlin

Abstract: mgewandte Chemie daB dieses groBte chemische Unternehmen Deutschlands von der Wirtschaftskrise nicht angefochten werden konnte, im Gegensatz zu den ubrigen Werken der chemischen Industrie.In einem Anhang sind zurn Schlui3 noch die wichtigsten Beteiligungen des Farbenkonzerns zusammengestellt.Handbueh der Physik. Herausgegeben von H. G e i g e r und Preis M 35,-; geb. M 37,50Mit dern Erscheinen des X. Bandes des Handbuches der Physik ,,ThermischeEigenschaften der Stoffe" wurde die Herausgabe eines groi3 angeleg… Show more

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“…Organic–inorganic composites are used extensively in various optical devices, electronic conductors, various coatings, mechanically robust filters, high modulus hybrids, and others . The different types of composites in these applications all offer high strength in addition to chemical and thermal stability.…”
Section: Introductionmentioning
confidence: 99%
“…Organic–inorganic composites are used extensively in various optical devices, electronic conductors, various coatings, mechanically robust filters, high modulus hybrids, and others . The different types of composites in these applications all offer high strength in addition to chemical and thermal stability.…”
Section: Introductionmentioning
confidence: 99%
“…Of utmost importance to the formation of these hybrid materials and their applications is the presence and the extent of phase separation. , Phase separation can lead to optical losses (limits the development of optical materials and optical sensors due to light scattering) and preferential entrapment (influences stability, activity, and response of immobilized molecules) and can provide routes for facile diffusion . Phase separation can result because the individual organosilicon precursors hydrolyze and condense at different rates compared to TEOS. ,, Different relative reaction rates of the precursors may lead to preferential concentration of each component into phase-separated domains.…”
Section: Introductionmentioning
confidence: 99%
“…The initial liquid state of the sol−gel system enables unlimited control of sample size and shape. A number of silica and titania based sol−gel systems capable of photoinduced alteration of surface structure have been reported. These systems typically consist of a tetravalent sol−gel backbone modified with photoactive substituents. The surface alteration mechanism usually involves the photoinduced polymerization or degradation of material, followed by a postphotochemical washing step .…”
Section: Introductionmentioning
confidence: 99%
“…The photoinduced steps generally require UV light. Several systems have been reported in which Bragg diffraction gratings are produced based on the photochemical alteration of the surface structure of the gel. , …”
Section: Introductionmentioning
confidence: 99%