Silicones polymerization

Chlorophenols, manufacture of, 23 654 Chlorophenoxy acid herbicides, 73 304 (E) -(RS) -1 -(4-Chlorophenyl) -4,4-dimethyl-2-(lH- l,2,4-triazol-l-yl)-pent-l-en-3-ol, 73 47—48. See also 4-Chlorophenyl-4,4- dimethyltriazol pentenol 4-Chlorophenyl-4,4-dimethyltriazol pentenol, 73 40t, 47 48 Chlorophosphazenes, 19 55, 56 in silicone polymerization, 22 556... [Pg.179]

N, Al-Dimethylserotonin, 2 92 Dimethylsilanediol biodegradability of, 22 605 in silicone polymerization, 22 556 Dimethylsilicone fluids... [Pg.274]

Organosiloxane oligomers, in silicone polymerization, 22 555-556 Organosiloxane polymers, silicone resins as, 22 586-590... [Pg.657]

Polycondensation, 10 189-190, 191 as an aging mechanism, 23 64 of polyamide plastics, 19 781-782 polyester formation by, 20 390-391 silicone polymerization via, 22 556-558 in the sol-gel process, 23 61-62 Polycrystalline alloys, 13 523 Polycrystalline diamond films, deposition of, 24 744-745... [Pg.727]

Siloxane compounds, in vitreous silica manufacture, 22 414 Siloxane materials, 20 240 Siloxane oligomers, in silicone polymerization, 22 555-556 Siloxanols, silylation and, 22 703 Silsesquioxane hybrids, 13 549 Silsesquioxanes, 15 188, 22 589-590 SilvaGas process, 3 696, 697 Silver (Ag), 22 636-667. See also Silver compounds. See Ag entries Argentothiosulfate complexes Batch desilverizing Lead-silver alloys Palladium-silver alloy membranes analytical methods for, 22 650-651 applications of, 22 636-637, 657-662 as bactericide, 22 656, 657, 660 barium alloys with, 3 344 in bimetallic monetary system, 22 647-648 in cast dental gold alloys, 8 307t coke formation on, 5 266 colloidal precipitation color, 7 343t colloidal suspensions, 7 275 color, 7 334, 335... [Pg.843]

Polymeric alkyl phenol ethoxy-lates Silicone polymeric surfactants Polyester surfactants... [Pg.25]

Figure 16.23. Proton image of the polymer in a crosslinked silicone polymeric block that contains in situ precipitated silica filler.

NMR is useful for determining the state of silicon polymerization. The observed Si NMR resonances for magnesium silicate are normally in the chemical shift range unless significant cationic substitution has occurred. Figure 7.19A illustrates the Si MAS spectra for magnesium... [Pg.264]

Gyclosilanes merit special comment because of their tendency to yield polymeric products. Three- and four-membered rings containing silicon polymerize readily under very mild conditions. Silacyclopentanes, on the other hand, give linear polymeric materials [MW (molecular weight) = 1000-2500] when heated with aluminum halides. [Pg.17]

B2 Silicone, polymerized liquid Lubricity Top, plug or both surfaces WP... [Pg.1480]

The element is used in ceramic industries and for the fabrication of semiconductors. Silicon-based polymers silicones polymeric chains containing alternately linked silicon and oxygen atoms) have wide application in industry as well as for clinical and pharmaceutical purposes. [Pg.832]

Silicones - Polymeric or oligomeric siloxanes, usually considered unbranched, of general formula [-OSiR -] (R not equal to H). [5]... [Pg.115]

These two steps are the basic reactions in silicone polymerization. It will be recognized that fhe presence of two —OH groups on silicon allows the formation of linear polymers three or more —OH groups allows the formation of cross-linked polymers. There is no evidence that hydroxyls on the same silicon ever condense to give =Si=0 for this reason the polymer is free to grow. Acid or base catalysis is generally used to speed up the reaction. [Pg.976]

The development of microfluidic devices with MALDI-MS detection has focused on interfaces that enable off-chip or on-chip MALDI-MS analysis and the microfabrication of silicon/polymeric MALDI target plates. [Pg.1474]

NMR) spectroscopy moments in atoms in the sample with rf electromagnetic waves, sensitive indicator of structural and chemical bonding properties phase identification and characterization of local bonding environment condensed species The chemical shifts in °Si NMR are functions of the state of silicon polymerization... [Pg.407]

Figure 21 Release profiles of double emulsions stabilized with polymeric hydrophobic emulsifier at the internal interface (AbU-EM-90) and a combination of hydrophilic siliconic polymeric emulsifier (PHMS-PDMS-52% UPEG-45EO) with various concentrations of Span 80.

Polymerized rosin. See Rosin, polymerized Polymerized siloxane. See Silicone Polymerized 2,2,4-trimethyl-1,2-dihydroquinoline. See 2,2,4-Trimethyl-l, 2-dihydroquinoline polymer Polymethacrylamidopropyl trimonium chloride CAS 68039-13-4... [Pg.3529]

Silicone polymeric materials are used in a variety of forms such as pure fluids, emulsions, solvent-based formulations, resins, elastomers and so on. They are formulated in numerous products for various applications involving different processes across many different industries. Some of these products where adhesion plays a major role are adhesives, coatings, encapsulants, hair conditioners. Pressure-sensitive adhesives, mould Release agents. Sealants, skin creams and so on. [Pg.467]

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