Affiliation:
1. 1The Goodyear Tire & Rubber Company, Akron, Ohio 44316
2. 2College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325
Abstract
Abstract
The effect of p-tert-octyl phenolic (PTOP) resin on the tack of an IR/N660 compound has been studied before and after aging. The phenolic resin has little effect on unaged tack. Upon aging at 23°C and 45% RH, autohesion of the IR/N660 significantly decreases. However, when the PTOP resin is added, tack is maintained during aging. FT-IR attenuated total reflectance analyses indicate that, upon aging, oxidation leads to cis → trans isomerization. The PTOP resin becomes enriched in the surface region and protects the IR from further oxidation and the accompanying cis → trans isomerization. Additionally, solubilized resin may behave as a plasticizer to enhance tack bond formation. A compound with phenolic monomer (PTOP resin precursor) forms a rapid bloom with aging and experiences rapid tack loss.
Subject
Materials Chemistry,Polymers and Plastics
Cited by
20 articles.
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