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The main purpose of dimethyldichlorosilane is for use in the synthesis of silicones, an industry that was valued at more than $10 billion per year in 2005. It is also employed in the production of polysilanes, which in turn are precursors to silicon carbide . [ 3 ]
The dominant examples come from the Direct process, i.e., (CH 3) 4-x SiCl x. Another important member is trichlorosilane (SiHCl 3). Organosilanes are a class of charge-neutral organosilicon compounds. Example: tetramethylsilane (Si(CH 3) 4) By tradition, compounds with Si-O-Si bonds are usually not referred to as silanes. Instead, they are ...
Although proportionately a minor outlet, organosilicon compounds are widely used in organic synthesis. Notably trimethylsilyl chloride Me 3 SiCl is the main silylating agent. One classic method called the Flood reaction for the synthesis of this compound class is by heating hexaalkyldisiloxanes R 3 SiOSiR 3 with concentrated sulfuric acid and a ...
Other acid-forming species, especially acetate, can replace chlorine in silicone synthesis with little difference in the chemistry of the finished polymer. These analogues of chlorosilanes are quite common in the sealants and adhesives marketed to consumers, and as precursors for medical-grade silicone, because of reduced toxicity.
The major product for the direct process should be dichlorodimethylsilane, Me 2 SiCl 2. However, many other products are formed. Unlike most reactions, this distribution is actually desirable because the product isolation is very efficient. [1] Each methylchlorosilane has specific and often substantial applications. Me 2 SiCl 2 is the most ...
The process begins with the synthesis of a very large oligonucleotide library, consisting of randomly generated sequences of fixed length flanked by constant 5' and 3' ends. The constant ends serve as primers, while a small number of random regions are expected to bind specifically to the chosen target.
The process of soft lithography consists of creating an elastic stamp, which enables the transfer of patterns of only a few nanometers in size onto glass, silicon or polymer surfaces. With this type of technique, it is possible to produce devices that can be used in the areas of optic telecommunications or biomedical research.
Regulation of biological processes occurs when any process is modulated in its frequency, rate or extent. Biological processes are regulated by many means; examples include the control of gene expression, protein modification or interaction with a protein or substrate molecule.