Rubber, 1. Survey

Greve, Heinz‐Hermann; Threadingham, Desmond

doi:10.1002/14356007.a23_221

Cited by 1 publication

(1 citation statement)

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“…Polyisobutylene (PIB)-based materials are widely used commercially in a diverse array of products such as automobile tires, sporting equipment, adhesive sealants, viscosity modifiers, chewing gum, and drug eluting stents. , The widespread use of these polymers can be attributed to their favorable properties including exceptional thermal and chemical stability, impermeability to gas and water, high damping, and high elasticity. While the saturated hydrocarbon backbone is responsible for many of PIB’s advantageous properties, it also limits the ability to modify and tune the properties of the polymer.…”

Section: Introductionmentioning

confidence: 99%

Carboxylic Acid-Functionalized Butyl Rubber: Synthesis, Characterization, and Physical Properties

McEachran

Trant

Sran

et al. 2015

Ind. Eng. Chem. Res.

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Polyisobutylene (PIB) and other PIB-based materials are of significant interest for a vast array of applications, but chemical modification is often required to obtain the desired properties. Described here are two new approaches for the preparation of carboxylic acid-functionalized PIB. The ring opening of cyclic anhydrides from an allylic alcohol derivative of butyl rubber and the atom transfer radical polymerization of tert-butyl methacrylate from a rubber derivative both ultimately afford carboxylated materials. These materials displayed significantly enhanced adhesion to stainless steel, as well as increased ultimate tensile strength and Young's modulus in comparison to unmodified rubbers. Rheological studies suggested that they exhibit a greater degree of cross-linking-type behavior than the parent butyl rubber. Combined, these studies suggest that the properties of PIB can be readily tuned through synthetic modifications of the backbone, even at low mole percent, and that carboxylic acid moieties can impart desirable properties for various applications.

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Section: Introductionmentioning

confidence: 99%