Self-assembly in solution of a reversible comb-shaped supramolecular polymer

Sandrine Pensec 1 Nicolas Nouvela 1 Audrey Guilleman 1 Costantino Creton 2 François Boué 3 Laurent Bouteiller 1
1 LCP - Chimie des polymères
IPCM - Institut Parisien de Chimie Moléculaire, UPMC - Université Pierre et Marie Curie - Paris 6, CNRS - Centre National de la Recherche Scientifique : UMR7610
Abstract : We report a single step synthesis of a polyisobutene with a bis-urea moiety in the middle of the chain. In low polarity solvents, this polymer self-assembles by hydrogen bonding to form a combshaped polymer with a central hydrogen bonded backbone and polyisobutene arms. The comb backbone can be reversibly broken, and consequently, its length can be tuned by changing the solvent, the concentration or the temperature. Moreover, we have proved that the bulkiness of the side-chains have a strong influence on both the self-assembly pattern and the length of the backbone. Finally, the density of arms can be reduced, by simply mixing with a low molar mass bis-urea.
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Submitted on : Thursday, May 13, 2010 - 5:27:57 PM
Last modification on : Monday, February 10, 2020 - 6:12:13 PM
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Sandrine Pensec, Nicolas Nouvela, Audrey Guilleman, Costantino Creton, François Boué, et al.. Self-assembly in solution of a reversible comb-shaped supramolecular polymer. International Journal of Biological Macromolecules, Elsevier, 2010, 43, pp.2529-2534. ⟨10.1021/ma901709e⟩. ⟨hal-00482118v2⟩



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