Facile bisurethane supramolecular polymers containing flexible alicyclic receptor units
Woodward, P., Clarke, A., Greenland, B.W., Merino, D.H., Yates, L., Slark, A.T., Miravet, J.F. and Hayes, W. (2009) Facile bisurethane supramolecular polymers containing flexible alicyclic receptor units. Soft Matter, 5 (10). pp. 2000-2010. ISSN 1744-683X
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To link to this article DOI: 10.1039/b817094k
This paper details the synthesis, characterisation and physical analyses of a series of hydrogen bonded urethane supramolecular polymer systems that are created by a facile one-step synthesis from inexpensive and commercially available starting materials. We report the synthesis and characterisation of a series of low molecular weight bisurethanes (<650 a.m.u.) that exhibit physical properties in the bulk that are characteristic of polyurethane materials possessing far higher molecular weight. The physical characteristics of these low molecular weight bisurethanes were investigated by using temperature-dependent rheological analysis and viscometry and the nature in which these compounds assembled was assessed using IR and NMR spectroscopies. These studies reveal that these simple bisurethanes self-assemble via hydrogen bonding interactions.
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