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Chimie moléculaire Paris Centre
ÉCOLE DOCTORALE 406

Supramolecular polymerizations – chirality as a muse

Séminaire du Pr Bert Meijer (Eindhoven University of Technology)

Abstract :

Although the word polymer was already coined by Jöns Jakob Berzelius in 1833, it was through the pioneering work of Hermann Staudinger in 1920, that it was recognized that the macroscopic properties of polymers both in solution and solid state are the result of the macromolecular nature of the molecules. The impressive progress in supramolecular chemistry, however, paved the way to design polymers and polymeric materials that lack the macromolecular structure. Instead, highly directional secondary interactions are used to assemble the many repeating units into a polymer array. By adequate design, these systems should still have all of those material properties that make polymers so valuable and on top of that we may expect some unprecedented behavior – like self-healing - as a result of the reversibility of the supramolecular design. Multiple hydrogen bonding units will be shown to be highly attractive to produce supramolecular polymers with unique properties. Like covalent polymers, or macromolecules, the supramolecular counterparts are prepared by different mechanisms. Especially ordered arrays of monomers are highly interesting due to the cooperative nature of their supramolecular polymerization processes. These supramolecular polymers will be used to create artificial extracellular matrices, hydrogels and super-selectivity in molecular recognition. In the lecture, the concept of supramolecular polymers will be illustrated with a detailed analysis of the pathways in these non-covalent polymerizations and how these supramolecular polymers are used.

21/03/19

Traductions :

    Contact

    Directeur

    cyril.ollivier@sorbonne-universite.fr (cyril.ollivier @ upmc.fr)

     

    Directeur adjoint

     

     

    Secrétariat

    Irène Rasoarinoro (irene.rasoarinoro @ upmc.fr)

    Tel. : 01 44 27 38 48

     

    SU - ED 406

    Tour 32 - 42

    Bureau 114 (1er étage)

    BC 63 - 4 Place Jussieu 

    75252 Paris cedex 5