Crown (dental restoration)
... preferences for impression techniques using intraoral digital scanner versus polyvinyl siloxane material". The Journal of ...
Step-growth polymerization
Polysiloxane, siloxane-based polymers available in a wide range of physical states-from liquids to greases, waxes, resins, and ...
Momentive
The company also produces raw materials such as siloxane polymers and various additives, including silanes, specialty fluids, ...
PTC rubber
Siloxanes, Solid state engineering). ...
Silanol
... and ethers to siloxanes proceed via silanols. The sol-gel process, which entails the conversion of, for example, Si(OEt)4 into ...
Photochromism
Some spirooxazines with siloxane polymers attached switch at near solution-like speeds even though they are in a rigid lens ... In 2005 it was reported that attaching flexible polymers with low glass transition temperature (for example siloxanes or ...
Direct bonding
The increase of the bonding energy is based on the conversion of silanol- (Si-OH) into siloxane-groups (Si-O-Si). The diffusion ... At temperatures from 110 °C to 150 °C silanol groups polymerize to siloxane and water, but also a slow fracture takes place. ... The difficulty is that water molecules may react with already formed siloxane-groups (Si-O-Si), so the overall energy of ... reaction equates a thermo dynamical equilibrium and a higher density of silanol groups results in a higher number of siloxane ...
Opal
The surface of opal in contact with water is covered by siloxane bonds (≡Si-O-Si≡) and silanol groups (≡Si-OH). This makes the ...
Anodic bonding
The thin formed oxide layer between the bond surfaces, siloxane (Si-O-Si), ensures the irreversible connection between the ...
Freeze gelation
Here, they come into contact with each other, and link via the condensation of their surface hydroxyl groups into siloxane ...
Photopolymer
... and cyclic siloxanes. The majority of ionic photoinitiators fall under the cationic class; anionic photoinitiators are ...
Carbon filtering
... for example the removal of siloxanes and hydrogen sulfide from biogas. It is also used in a number of other applications, ...
Filament propagation
... has been observed in several photo-polymerizable systems, including organo-siloxane, acrylics, epoxy and ...
Damp (structural)
As with liquid products these are based on silane/siloxane active ingredients which line the pores of the mortar to repel damp ...
Polysilicone-15
The backbone chain is mainly composed of siloxane repeat units, and is of low molecular weight, so being classed as an oligomer ... Siloxanes, All stub articles, Dermatologic drug stubs). ...
Intravitreal implants
... and poly siloxane (PS). An advantage to these non-biodegradable implants is that they do not cause any immune response towards ...
Paint
... silanes or siloxanes or oils. Binders can be categorized according to the mechanisms for film formation. Thermoplastic ...
Dimethyldichlorosilane
Vinyl-Substituted Silphenylene Siloxane Copolymers: Novel High-Temperature Elastomers. Macromolecules. 1999, 32, pp 3426-3431. ...
Dentures
Polyvinyl siloxane impression material is one of several very accurate impression materials used when the final impression is ...
Polytetrafluoroethylene
Powdered PTFE is used in a suspension with a low-viscosity, azeotropic mixture of siloxane ethers to create a lubricant for use ...
Cooperative segmental mobility
For example, the glass transition temperature of poly(dimethyl siloxane) is -125 °C whereas that of poly(isobutylene) is -75 °C ...
Philadelphia Water Department
... and siloxane gas. The process captures more than 80 percent of all of the available energy for heat and electricity and ...
Dicobalt octacarbonyl
The preparation of the cyclic siloxane moiety immediately prior to the introduction of the dicobalt octacarbonyl ensures that ...
Siloxide
They also arise by the degradation of siloxanes by base: R3SiOSiR3 + 2 NaOH → 2 R3SiONa + H2O Cleavage of cyclic siloxanes ...
Hexamethylcyclotrisiloxane
The larger tetrameric and pentameric siloxanes, respectively octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane, are ...
List of MeSH codes (D25)
... siloxanes MeSH D25.720.900.850 - silicones MeSH D25.720.900.850.150 - dimethylpolysiloxanes MeSH D25.720.900.850.150.750 - ...
Polymethylhydrosiloxane
Siloxanes, Reducing agents). ...
Drometrizole trisiloxane
Siloxanes, Sunscreening agents). ...
1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
Siloxanes, Vinyl compounds). ...
Hydrosilanes
Illustrative is the crosslinking of vinyl-terminated siloxanes: In the presence of platinum-based catalysts, hydrosilanes react ...