Polyisobutylene (PIB)
Abbreviation: PIB
Polyisobutylene (PIB) is a long-chain hydrocarbon polymer derived from the polymerization of isobutylene, possessing high molecular weight and exhibiting characteristics of a rubbery material. It is used in applications such as sealants, adhesives, lubricants, and as a base material for manufacturing butyl rubber, due to its excellent impermeability to gases and moisture, as well as its resistance to chemicals and temperature extremes.
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