Thermally responsive elastomeric supramolecular polymers featuring flexible aliphatic hydrogen-bonding end-groups
Woodward, P., Merino, D.H., Hamley, I.W., Slark, A.T. and Hayes, W. (2009) Thermally responsive elastomeric supramolecular polymers featuring flexible aliphatic hydrogen-bonding end-groups. Australian Journal of Chemistry, 62 (8). pp. 790-793. ISSN 0004-9425
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To link to this article DOI: 10.1071/ch09088
The present paper details the synthesis, characterization, and preliminary physical analyses of a series of polyisobutylene derivatives featuring urethane and urea end-groups that enable supramolecular network formation to occur via hydrogen bonding. These polymers are readily accessible from relatively inexpensive and commercially available starting materials using a simple two-step synthetic approach. In the bulk, these supramolecular networks were found to possess thermoreversible and elastomeric characteristics as determined by temperature-dependent rheological analysis. These thermoreversible and elastomeric properties make these supramolecular materials potentially very useful in applications such as adhesives and healable surface coatings.
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