Rules of microgels assembly by metallo-supramolecular interactions

A recent paper from the Colloids, Assemblies and Interfacial Dynamics team (CAID team) reports on the rules of assembly of thermoresponsive microgels using metallo-supramolecular chemistry. The rules set out in this paper enable to envisage the development of 1D, 2D or 3D materials using microgels as building blocks.

To achieve this, terpyridine-functionalized poly(N-isopropylacrylamide) (PNiPAM) microgel building blocks are first synthesized by surfactant free dispersion polymerization in water. The microgel assemblies, which are controlled by monitoring the attractive and repulsive potentials between the soft colloidal particles, are then frozen by forming inter-particle metal–terpyridine biscomplexes upon addition of the metallic cation (such as FeII, CoII). By oxidation of the metal–terpyridine bis-complex links, the aggregates open up, which is due to the complex dissociation releasing the connected particles in the form of single microgels. We extended our work to the development of 1D filaments and 2D membranes materials made of soft particles connected via supramolecular chemistry.

If you want to know more
Reversible Assembly of Microgels by Metallo-Supramolecular Chemistry
Julien Es Sayed, Cédric Lorthioir, Philippe Banet, Patrick Perrin,* and Nicolas Sanson*
Angewandte Chemie International Edition 2020

Haut de page

À lire aussi...

Interplay between silicate and hydroxide ions during geopolymerization

Geopolymer is a low environmental impact binder obtained from clay or industrial by-products. However, to be a realistic competitor to the (...) 

> Lire la suite...

Prix des meilleures présentations orale et poster aux Journées de l’Ecole Doctorale Matériaux pour trois doctorants du SIMM

Les 30 et 31 octobre 2019 se déroulaient au Campus des Cordeliers les Journées de l’Ecole Doctorale 397 « Physique et Chimie des Matériaux ». Lors de (...) 

> Lire la suite...


Informations Pratiques

Sciences et Ingénierie de la Matière Molle - UMR 7615

10 rue Vauquelin
75231 PARIS CEDEX 05

  • Directeur : E. Barthel
  • Directeur adjoint : J.B. d’Espinose
  • Directrice adjointe : G. Ducouret
  • Pôle gestion : F. Decuq, M.-T. Mendy et M. Hirano-Courcot
  • Communication : A. Hakopian et M. Ciccotti
  • Systèmes d’information : A. Hakopian
  • Assistant prévention : F. Martin

Comment venir ?