PIB meaning in Academic & Science ?

Answer:

What is Polyisobutylene mean?

Polyisobutene (polyisobutylene) is a class of organic polymers prepared by polymerization of isobutene. The polymers often have the formula Me3C[CH2CMe2]nX (Me = CH3, X = H, F). They are typically colorless gummy solids.

Polymerization is typically initiated with a strong Bronsted or Lewis acid. The molecular weight (MW) of the resulting polymer determines the applications. Low MW polyisobutene, a mixture of oligomers with Mns of about 500, is used as plasticizers. Medium and high MW polyisobutenes, with Mn ≥ 20,000, are components of commercial adhesives.

reference

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Polyisobutylene	Academic & Science
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