Polyisobutene
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| Lua error in package.lua at line 80: module 'Module:InfoboxImage/data' not found. Sample of polyisobutene with a molecular weight of ~1,000,000[1]
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| Other names
Polyisobutylene; Poly(isobutene); Poly(isobutylene); PIB
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| Identifiers | |
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| Properties | |
| (C4H8)n | |
| Molar mass | Variable |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Template:Chembox Footer/trackingTemplate:Short description
Polyisobutene (polyisobutylene) is a class of organic polymers prepared by polymerization of isobutene. The polymers often have the formula Me3C[CH2CMe2]nH (Me = CH3). They are typically colorless gummy solids.
Cationic polymerization, initiated with a strong Brønsted or Lewis acid, is the typical method for its production. 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.[2]
See also
References
- ^ OPPANOL B 100 by BASF
- ^ Page Module:Citation/CS1/styles.css has no content.Kenneth S. Whiteley; T. Geoffrey Heggs; Hartmut Koch; Ralph L. Mawer; Wolfgang Immel (2005). "Polyolefins". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a21_487.
