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Organic functional group (Si–O–Si)
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
Siloxane
Impression material used in dentistry
Polyvinyl siloxane (PVS), also called poly-vinyl siloxane, vinyl polysiloxane (VPS), or vinylpolysiloxane, is an addition-reaction silicone elastomer
Polyvinyl_siloxane
Industrial and food chemical
non-flammable. It is one of several types of silicone oil (polymerized siloxane). The applications of PDMS range from contact lenses and medical devices
Polydimethylsiloxane
Family of polymers
A silicone or polysiloxane is a polymer composed of repeating units of siloxane (−O−SiR2−O−SiR2−, where "R" stands for an organic group). They are typically
Silicone
Any liquid polymerized siloxane with organic side chains
Silicone oil is any liquid polymerized siloxane with organic side chains. The most important member is polydimethylsiloxane. These polymers are of commercial
Silicone_oil
Chemical additive
to colorless liquid containing methyl hydride siloxane polymer is commonly used. Methyl hydride siloxane is readily dissoluble in aromatic and chlorinated
Silicon organic water repellent
Silicon_organic_water_repellent
Elastomer composed of silicone
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
Silicone_rubber
Gases produced by decomposing organic matter
micro-organisms living in water. Trace quantities of volatile organic compounds and siloxanes can also vapourize into biogas, if they are present in the biomass feedstock
Biogas
Chemical compound
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
Decamethylcyclopentasiloxane
belong to different classes of chemical compounds, including hydrocarbons, siloxanes and refrigerants. In the non-ideal regime, even qualitative differences
Non ideal compressible fluid dynamics
Non_ideal_compressible_fluid_dynamics
Substance that lowers surface tension
hydrocarbons. Fluorosurfactants have fluorocarbon chains. Siloxane surfactants have siloxane chains. Surfactant molecules have either one tail or two;
Surfactant
Chemical compound
the semiconductor industry. In water, it rapidly decomposes to produce a siloxane polymer while giving off hydrochloric acid. Because of its reactivity and
Trichlorosilane
Chemical compound
called D4, is an organosilicon compound and one of a number of cyclic siloxanes (cyclomethicones). It is a colorless viscous liquid with a high boiling
Octamethylcyclotetrasiloxane
Chemical reaction damaging concrete
reaction. The surface of solid silica in contact with water is covered by siloxane bonds (≡Si–O–Si≡) and silanol groups (≡Si–OH) sensitive to an alkaline
Alkali–silica_reaction
Organic compound
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Urea
Organic compounds of the form >C=O
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Ketone
Chemical compounds with the structure R–O–O–R'
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Peroxide
Casing for integrated circuit or semiconductor components
leads and handling of the package. The plastic can be cresol-novolaks, siloxane polyimide, polyxylylene, silicones, polyepoxides and bisbenzocyclo-butene
Semiconductor_package
Chemical compound
Disiloxane has the chemical formula Si 2H 6O. It is the simplest known siloxane with hydrogen only R groups. The molecule contains six equivalent Si−H
Disiloxane
Cleaning of fabrics in non-aqueous solvents
Decamethylcyclopentasiloxane (C10H30Si5O5; colloquially known as "siloxane" or "liquid silicone", trademarked Siloxane D5), was initially popularized by GreenEarth Cleaning
Dry_cleaning
Toy and practical joke device
trioleate surfactant, 0.35% silicone fluid such as dimethyl siloxane or methyl phenyl siloxane, 5.6% of flame retardant hexabromobenzene, and 2–3% pigment
Silly_String
Coupling reaction
Siloxane application
Heck_reaction
Chemical compound
compound, it is mainly used a precursor for forming various cross-linked siloxane polymers. Methyltrichlorosilane results from the direct process of chloromethane
Methyltrichlorosilane
Compound derived from an acid
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Ester
Chemical compound
hydrolysis of the isocyanates. Various poly(siloxane–urethane) crosslinked polymers can be formed by reaction with siloxane-diols. These compounds are of interest
1,1'-Ferrocenediisocyanate
Chemical compounds and groups containing nitrogen with a lone pair (:N)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Amine
Class of chemical compounds
Usually the Si and N have organic substituents. They are analogous to siloxanes, with -NR- (R = alkyl, aryl) replacing -O-. One illustrative family of
Silazane
Chemical group (–CH3) derived from methane
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Methyl_group
Class of organic compounds
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Acetal
Organometallic compound containing carbon–silicon bonds
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
Organosilicon_chemistry
Any organic compound having a sulfanyl group (–SH)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Thiol
Type of silicone material
polysiloxane networks. When R is methyl, the four possible functional siloxane monomeric units are described as follows: "M" stands for trimethylsilanol
Silicone_resin
Cyclic chemical group (–C6H5)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Phenyl_group
Chemical group (R–C=O)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Acyl_group
Filtering method
air filtering and industrial gas processing, for example the removal of siloxanes and hydrogen sulfide from biogas. It is also used in a number of other
Carbon_filtering
Method for producing solid materials from small molecules
intermediates result from two partially hydrolyzed monomers linked with a siloxane [Si−O−Si] bond: (OR)3−Si−OH + HO−Si−(OR)3 → [(OR)3Si−O−Si(OR)3] + H−O−H
Sol–gel_process
Functional group with the chemical structure R–S–S–R′
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Disulfide
Synthetic polymer
PTFE is used in a suspension with a low-viscosity, azeotropic mixture of siloxane ethers to create a lubricant for use in twisty puzzles. In optical radiometry
Polytetrafluoroethylene
Covalent chemical bond between silicon and oxygen atoms
respect to polymerisation or oligomerization. Silanones oligomerise to siloxanes unless they are stabilised, for example by coordination to a metal centre
Silicon–oxygen_bond
Chemical compound
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Pentyl_group
Chemical compound
monolayers. It is sensitive toward water, irreversibly degrading to a siloxane polymer. It places a C18H39SiO3 "cap" on oxide surfaces. The formation
Octadecyltrimethoxysilane
British chemist
book on Inorganic Chemistry, first published in 1911. Silicon Silicone Siloxane Organosilicon Silicone grease Silicone oil Silicone resin Silicone rubber
Frederic_Kipping
Group of chemical compounds
also arise by the degradation of siloxanes by base: R3SiOSiR3 + 2 NaOH → 2 R3SiONa + H2O Cleavage of cyclic siloxanes affords siloxides: (Me2SiO)3 + MeLi
Siloxide
Polymer skin treatment for minor cuts
poly(methylacrylate-isobutene-monoisopropylmaleate) (alcohol based), and acrylate or siloxane polymers (hexamethyldisiloxane or isooctane solvent based). In addition
Liquid_bandage
Hydrocarbon compound (H2C=CH2)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Ethylene
Organic compounds of the form RC(=O)NR′R″
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Amide
Chemical group (–C(=O)C6H5
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Benzoyl_group
Chemical reaction
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Hydrodealkylation
Chemical group (R–S–Cl)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Sulfenyl_chloride
Organic compounds made of alkyl/aryl groups bound to oxygen (R–O–R')
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Ether
Chemical compound
silylated derivatives are amenable to analysis or further manipulation. Siloxanes are invariably more volatile than their hydroxyl precursors, and thus
BSTFA
Methods used to protect natural stone
spalling. The most penetrating sealers use siliconates, fluoro-polymers and siloxanes, which repel liquids. These sealers penetrate the surface of the stone
Stone_sealer
Chemical compounds
prepared in this way. Illustrative is the crosslinking of vinyl-terminated siloxanes: In the presence of platinum-based catalysts, hydrosilanes react with
Hydrosilanes
Group of chemical compounds derived from alkanes containing one or more halogens
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Haloalkane
Group of chemical compounds
product will require flash chromatography to remove excess silanol and siloxane. Sometimes silyl triflate and a hindered amine base are used. Silyl triflates
Silyl_ether
Chemical group (–OH)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Hydroxy_group
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Crotyl_group
Hydrated amorphous form of silica
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
Opal
Chemical compound
for porcelain teeth crowns,[better source needed] and as a precursor to siloxanes.[better source needed] TEOS easily converts to silicon dioxide upon the
Tetraethyl_orthosilicate
Heterocyclic aromatic organic compound
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Pyridine
Chemical compound
tert-butyldiphenylsilyl (TBDPS) protected primary alcohol. The preparation of the cyclic siloxane moiety immediately prior to the introduction of the dicobalt octacarbonyl
Dicobalt_octacarbonyl
Any organic compound containing a C=C=C group
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Allene
Applied protection for softer materials
polyolefin-resin, while the clear coat typically contains the additives siloxane and erucamide. Scratch-resistant coatings are frequently added to glasses
Anti-scratch_coating
Molecular compound with applications in ceramics
silsesquioxanes can be linked by the alkene metathesis. Reorganization of the siloxane cage-like core (T8 → T10) can be induced by trifluoromethanesulfonic acid
Silsesquioxane
Chemical compound
marketed as Parsol SLX by DSM. The backbone chain is mainly composed of siloxane repeat units, and is of low molecular weight, so being classed as an oligomer
Polysilicone-15
Wafer bonding process in semiconductor production
hydrogen-bonds. At temperatures from 110 °C to 150 °C silanol groups polymerize to siloxane and water, but also a slow fracture takes place. This reaction equates
Direct_bonding
Organic molecule with two different functional groups
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Bifunctionality
American scientist
Chemistry, 2004, University of Southern California Thesis Crosslinked siloxanes: preparation and properties (2004) Academic work Institutions Texas A&M
Melissa_Grunlan
Wastewater that is produced by a community of people
Kurunthachalam (19 February 2013). "Mass Loading and Fate of Linear and Cyclic Siloxanes in a Wastewater Treatment Plant in Greece". Environmental Science & Technology
Sewage
Class of organic compounds
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Alcohol_(chemistry)
Chemical group (–N=C=O)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Isocyanate
Chemical compound
yields well-defined Polyethylene oxides with low polydispersity. Cyclic siloxanes (such as hexamethylcyclotrisiloxane or decamethylcyclopentasiloxane) can
P4-t-Bu
Oxygen-free break down of material
low-molecular-weight siloxanes volatilise into biogas. When this gas is combusted in a gas engine, turbine, or boiler, siloxanes are converted into silicon
Anaerobic_digestion
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Reductone
Organic polymer with the repeating formula [CH3(H)SiO]
Polymethylhydrosiloxane Names Other names Methyl hydrogen siloxane; Poly(methyl siloxane); Poly(methylhydrosiloxane); Polysilicone 4 Identifiers CAS Number
Polymethylhydrosiloxane
Proposed lightweight radiator
temperature range (K) coolant type example 250 K – 350 K silicone oils siloxane Trimethyl-Pentaphenyl-Trisiloxane 370 K – 650 K liquid metal eutectics
Liquid_droplet_radiator
Class of chemical compounds
cyclomethicone and mixed cyclosiloxane. Polydimethylsiloxane Cyclomethicone Siloxane and other organosilicon compounds Cyclosiloxanes (pdf-file), Materials
Cyclosiloxane
Processes for treating wastewater produced as an industrial by-product
endocrine disrupting compounds, hormones, perfluorinated compounds, siloxanes, drugs of abuse and other hazardous substances Microplastics such as polyethylene
Industrial wastewater treatment
Industrial_wastewater_treatment
Pigment applied over a surface that dries as a solid film
(VAE), polyurethanes, polyesters, melamine resins, epoxy, silanes or siloxanes or oils. Binders can be categorized according to the mechanisms for film
Paint
Polyatomic ion (NO3, charge –1) found in explosives and fertilisers
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Nitrate
Class of organic compounds
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Chlorofluorocarbon
Restoration procedure in dentistry
intraoral scanner or by taking a conventional impression using polyvinyl siloxane. The details of the fabrication methods are as follows: CAD-CAM (aka Computer
Inlays_and_onlays
Organic compound with a –C≡N functional group
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Nitrile
Toy putty (slime)
U.S. patent 2,541,851 – Process for making puttylike elastic plastic, siloxane derivative composition containing zinc hydroxide Haynes, Carol (January
Silly_Putty
Dental prosthetic that recreates the visible portion of a tooth
impression techniques using intraoral digital scanner versus polyvinyl siloxane material". The Journal of Prosthetic Dentistry. 118 (3): 386–391. doi:10
Crown_(dental_restoration)
American chemical company
derivatives. The company produces silicones, resins, specialty chemicals, siloxanes, silanes, additives, ceramics and quartz. The company traces its origins
Momentive
Indoor pet faeces and urine collection box
litter. The surface of silica gel is covered with silanol (Si-OH) and siloxane (Si-O-Si) functional groups. These groups interact with water molecules
Litter_box
Chemical compound
limited use in organic chemistry. The larger tetrameric and pentameric siloxanes, respectively octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane
Hexamethylcyclotrisiloxane
Chemical group (>N–C(=O)–O–)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Carbamate
Medical device
Peru. Annovera - a contraceptive vaginal ring, manufactured from methyl siloxane-based polymers, and releasing segesterone acetate (a progestin) and ethinylestradiol
Vaginal_ring
Functional group (C=O)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Carbonyl_group
Chemical group (–CH2–CH3)
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Ethyl_group
Imprint of mouth tissue
hydrocolloids: sodium alginate elastomeric materials: silicones (polyvinyl siloxane): condensation-cured silicones, addition silicones, vinyl polyether silicones
Dental_impression
Craniofacial prosthesis for someone who no longer has their original nose
to ensure that no excess material gets into the wrong areas. Polyvinyl siloxane, a liquid that can quickly solidify, is used to make an impression of the
Nose_prosthesis
Organic compound containing a –C(=O)OH group
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Carboxylic_acid
Hydrocarbon compound containing one or more C=C bonds
Tetrazole Silicon Silane Hydrosilane Chlorosilane Silene Silanol Siloxide Siloxane Silanone Silether Silole Silatrane Silicate Phosphorus Phosphate Phosphodiester
Alkene
Technique in dentistry
strength and it cannot be used for bite registration against a Polyvinyl siloxane (PVS) impression as poor articulation will result from the lack of surface
Bite_registration
Chemical compounds used in adhesives and sealants
is required to form an intermediate silanol, which then reacts to form siloxane linkages in a condensation process. Silyl-modified polymers are widely
Silyl_modified_polymers
Chemical compound
acetate is used as a catalyst for the polymerization of silanol terminated siloxane oligomers. Perry, Dale L. (2016-04-19). Handbook of Inorganic Compounds
Rubidium_acetate
American chemist (1928–2022)
understanding rotations in polymers. West's numerous other discoveries include a siloxane-based electrolyte which has made possible revolutionary rechargeable implantable
Robert_West_(chemist)
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