Silicone - Wikipedia
In organosilicon and polymer chemistry, a silicone or polysiloxane is a polymer composed of repeating units of siloxane (−O−R 2 Si−O−SiR 2 −, where R = organic group). They are typically colorless oils or rubber -like substances.
Silicone | Definition, Composition, Properties, Uses, & Facts
2024年11月29日 · Silicone, any of a diverse class of fluids, resins, or elastomers based on polymerized siloxanes, substances whose molecules consist of chains made of alternating silicon and oxygen atoms. Silicones have a wide range of commercial applications, from lubricating greases to biomedical implants.
Silicone Polymers - Chemistry LibreTexts
2023年1月23日 · Silicone polymers, more properly called polysiloxanes, do not have carbon as part of the backbone structure. Although silicon is in the same group as carbon in the periodic table, it has quite different chemistry. Many silanes are known which are analogous to the hydrocarbons with Si-Si bonds.
Silicone Polymer - an overview | ScienceDirect Topics
Silicone polymers are hybrid organic/inorganic polymers that exhibit low surface energy and high flexibility. They possess excellent physical properties such as water repellency, heat stability, and resistance to chemical and UV attack.
Silicone resin - Wikipedia
Silicone resins are a type of silicone material which is formed by branched, cage-like oligosiloxanes with the general formula of R n SiX m O y, where R is a non-reactive substituent, usually methyl (Me = −CH 3) or phenyl (Ph = −C 6 H 5), and X is a functional group: hydrogen (−H), hydroxyl (−OH), chlorine (−Cl) or alkoxy (−O −).
Silicone: Definitions, History, and Uses - ThoughtCo
2019年1月11日 · Silicones are a type of synthetic polymer, a material made of smaller, repeating chemical units called monomers that are bonded together in long chains. Silicone consists of a silicon-oxygen backbone, with “sidechains” consisting of hydrogen and/or hydrocarbon groups attached to the silicon atoms.
Silicone Polymers: Definition, Preparation, Properties and …
2022年2月5日 · What are Silicone Polymers? Silicones are polymeric organosilicon compounds containing (Si-O-Si) linkages and have the general formula (R₂SiO). They are typically colorless, oils, or rubber-like substances that may be linear, cyclic, or crosslinked. Silicone polymers have very high thermal stability and are also called high-temperature polymers.
Silicones: Structure, Properties, Preparation & Uses - ALLEN
Silicones are a versatile group of synthetic polymers composed of repeating siloxane units, which include silicon, oxygen, carbon, and hydrogen atoms. These colourless, rubber-like substances are known for their flexibility, heat resistance, low toxicity, and water repellency.
What Are Silicones? - Global Silicones Council
“Silicone” is a generic term referring to a class of synthetic polymers that are based on a framework of alternating silicon and oxygen (siloxane) bonds with at least one organic group attached to the silicon atom via a direct carbon-silicon bond.
Silicone - an overview | ScienceDirect Topics
Silicones are a class of synthetic compounds, the molecules of which consist of polymer chains of alternately connected silicon and oxygen atoms. They are found in a variety of applications with requirements ranging from long life at elevated temperatures to fluidity at low temperatures.