polydimethylsiloxane

Polydimethylsiloxane, commonly known as silicone, is a versatile polymer with a unique structure. Unlike most organic polymers, its backbone is composed of alternating silicon and oxygen atoms, making it an "inorganic" polymer despite having organic groups attached to the silicon atoms. This structure grants silicones exceptional properties, including resistance to water, oxidation, and extreme temperatures.12

The most common form, polydimethylsiloxane, is synthesized from silicon and methyl chloride. Its flexible molecular structure and heat-resistant silicon-oxygen bonds contribute to its stability and gas permeability. These characteristics lead to a wide array of applications, such as lubricants, electrical insulation, sealants, and even biomedical implants.12