In organosilicon chemistry, a siloxane is an organic compound containing a functional group of two silicon atoms bound to an oxygen atom: Si−O−Si. The parent siloxanes include the oligomeric and polymeric hydrides with the formulae H[OSiH2]nOH and [OSiH2]n.[1] Siloxanes also include branched compounds, the defining feature of which is that each pair of silicon centres is separated by one oxygen atom. The siloxane functional group forms the backbone of silicones [−R2Si−O−SiR2−]n, the premier example of which is polydimethylsiloxane (PDMS).[2] The functional group R3SiO− (where the three Rs may be different) is called siloxy. Siloxanes are manmade and have many commercial and industrial applications because of the compounds’ hydrophobicity, low thermal conductivity, and high flexibility.
^Siloxanes, IUPAC Gold Book.
^Cite error: The named reference Roeshe was invoked but never defined (see the help page).
chemistry, a siloxane is an organic compound containing a functional group of two silicon atoms bound to an oxygen atom: Si−O−Si. The parent siloxanes include...
Polyvinyl siloxane (PVS), also called poly-vinyl siloxane, vinyl polysiloxane (VPS), or vinylpolysiloxane, is an addition-reaction silicone elastomer...
non-flammable. It is one of several types of silicone oil (polymerized siloxane). Its applications range from contact lenses and medical devices to elastomers;...
a silicone or polysiloxane is a polymer composed of repeating units of siloxane (−O−R2Si−O−SiR2−, where R = organic group). They are typically colorless...
A silicone oil is any liquid polymerized siloxane with organic side chains. The most important member is polydimethylsiloxane. These polymers are of commercial...
reaction-building polymer is an addition reaction), a hydride- and a vinyl-functional siloxane polymer react in the presence of a platinum complex catalyst, creating...
pervasive. Cyclic siloxanes have been detected in some species of aquatic life. A scientific review in Canada has determined that “Siloxane D5 does not pose...
20th century saw the development of the chemistry and industrial use of siloxanes and the growing use of silicone polymers, elastomers, and resins. In the...
belong to different classes of chemical compounds, including hydrocarbons, siloxanes and refrigerants. In the non-ideal regime, even qualitative differences...
compound, it is mainly used a precursor for forming various cross-linked siloxane polymers. Methyltrichlorosilane results from the direct process of chloromethane...
found to be capable of self-healing small scratches. Poly-(ε-caprolactone)/siloxane is an inorganic-organic hybrid material which, when used as a solid electrolyte...
the semiconductor industry. In water, it rapidly decomposes to produce a siloxane polymer while giving off hydrochloric acid. Because of its reactivity and...
dimethylsiloxanes and polydimethylsiloxane. From this mixture, the cyclic siloxanes including D4 can be removed by distillation. In the presence of a strong...
or aromatic. Fluorosurfactants have fluorocarbon chains. Siloxane surfactants have siloxane chains. Many important surfactants include a polyether chain...
Usually the Si and N have organic substituents. They are analogous to siloxanes, with -NR- (R = alkyl, aryl) replacing -O-. One illustrative family of...
2) and may have small amounts of hydrogen sulfide (H 2S), moisture and siloxanes. The methane can be combusted or oxidized with oxygen. This energy release...
endocrine disrupting compounds, hormones, perfluorinated compounds, siloxanes, drugs of abuse and other hazardous substances Microplastics such as polyethylene...
U.S. patent 2,541,851 – Process for making puttylike elastic plastic, siloxane derivative composition containing zinc hydroxide sillyputtyhistory.blogspot...
trioleate surfactant, 0.35% silicon fluid such as dimethyl siloxane or methyl phenyl siloxane, 5.6% of flame retardant hexabromobenzene, and 2–3% pigment...
polysiloxane networks. When R is methyl, the four possible functional siloxane monomeric units are described as follows: "M" stands for trimethylsilanol...
disorder is removed. The surface of opal in contact with water is covered by siloxane bonds (≡Si–O–Si≡) and silanol groups (≡Si–OH). This makes the opal surface...
H2O Silanols tend to dehydrate to give siloxanes: 2 R 3SiOH → R 3Si-O-SiR 3 + H2O Polymers with repeating siloxane linkages are called silicones. Compounds...
poly(methylacrylate-isobutene-monoisopropylmaleate) (alcohol based), and acrylate or siloxane polymers (hexamethyldisiloxane or isooctane solvent based). In addition...
Global Information