IIT JEE , AIEEE Forum - Chemistry , Inorganic Chemistry - p-block

varshavallig

urgent!!!,

are "silicones" organo or inorgano silicon polymers?

sabnisneil

Silicones (more accurately called polymerized siloxanes or polysiloxanes) are inorganic-organic polymers with the chemical formula [R₂SiO]_n,
where R = organic groups such as methyl, ethyl, and phenyl.
These materials consist of an inorganic silicon-oxygen backbone (...-Si-O-Si-O-Si-O-...) with organic side groups attached to the silicon atoms, which are four-coordinate.
In some cases organic side groups can be used to link two or more of these -Si-O- backbones together. By varying the -Si-O- chain lengths, side groups, and crosslinking, silicones can be synthesized with a wide variety of properties and compositions. They can vary in consistency from liquid to gel to rubber to hard plastic. The most common type is linear polydimethylsiloxane or PDMS (a silicone oil). The second largest group of silicone materials is based on silicone resins, which are formed by branched and cage-like oligosiloxanes.

so r things clearer now??

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