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 (sĭ-lŏk′sān′, sī-)
Any of a class of chemical compounds of silicon, oxygen, and hydrogen, based on the repeating structural unit H2SiO.


(Elements & Compounds) any of a class of compounds containing alternate silicon and oxygen atoms with the silicon atoms bound to hydrogen atoms or organic groups. Many are highly complex polymers. See also silicone
[C20: from sil(icon) + ox(ygen) + (meth)ane]


(sɪˈlɒk seɪn)

any of the class of chemical compounds containing the structural unit R2SiO, where R is an organic group or hydrogen.
[1920–25; sil (icon) + ox (ygen) + -ane]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.siloxane - any of a large class of compounds that have alternate silicon and oxygen atoms
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
silicone, silicone polymer - any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation
References in periodicals archive ?
Volatile Methyl Siloxanes (VMS) are a class of chemicals widely used in personal care products, the dry cleaning industry and as effective cleaning agents of electronic circuitry.
Recently, optimized siloxane-based superwet-ting surfactants have been developed; these new products exhibit the outstanding spreading, flow, and leveling usually associated with siloxanes, as well as the low-foam, dynamic wetting benefits attributed to organic superwetting surfactants.
Like all traditional defoamers, siloxanes function via :an incompatibility mechanism which often results in surface defects in the final film.
The sulfur-based crosslinking agents are sulfur, pipentamethylenethiuram tetrasulfide, zinc-N-dibenzyl-dithiocarbamate, N,N'-diphenyl thiourea, ethylene thiourea and dibenzothiazyl disulfide, sulfur silanes, sulfur siloxanes, and chlorothio sulfonamides.
Additionally, Silencure SRT contains a proprietary blend of siloxanes that penetrate capillary pores of fresh concrete to form a silicone matrix, which effectively prevents water and salt penetration.
Polyvinyl siloxanes are available in viscosities ranging from very low (for pouring, syringing or wash use), to medium, high and very high.
The hybrid copolymers can achieve high mechanical properties by controlling the amount of siloxane, (6), (7) selecting suitable chain extenders, (3), (8) using different siloxanes, (7), (9), (10) adjusting the ratio of soft segments to hard segments, (10) and through other methods.
D5 and related siloxanes are noted for their ability to provide a quick-drying, non-oily feel to everything from shampoo to sunscreen.
Each product in the system also provides an effective, quality alternative to D5 siloxanes and D5 derivative materials.
Environmental agency oversteps its bounds by targeting siloxanes
Over the past years, siloxanes were incorporated into PU structures to obtain a new hydrophobic domain [7-12].
The tests conducted by Toxicon have also established that the cyclic siloxanes generated are cytotoxic with a reduction in cell count of 70%.