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Block copolymer and polyelectrolytes self-assembly

  1. Nanostructured membranes – transport in nanopores
  2. Optimisation and modification of interfacial properties – analysis of the surface/solutes interactions.
  3. Self-healing membranes

Biosourced polymer materials

  1. Building blocks synthesis from enzymatic reaction of natural polymers to be used in biomaterial preparation.
  2. Membrane preparation from green chemical routes.

Example of research :

Block copolymer membranes Higher performances and new functionalities in membrane science can be addressed by controlling the membrane morphology at a micro/nano-scale. Block copolymers with various architectures and chemical structures are self-assembled either in bulk or in solution in order to access the desired porous nanomaterials[1]. For example, membranes with cylindrical pores, nanoparticle or “spider web” morphologies are currently under investigations (Figure 1). The nanometric organization leads to new functionalities like for example a stimuli-responsive porosity and/or surface chemistry and a self-healing behavior.

Figure 1.

  1. Quemener, D. ; Bonniol, G. ; Phan, T. ; Gigmes, D. ; Bertin, D. ; Deratani, A., Free-Standing Nanomaterials from Block Copolymer Self-Assembly. Macromolecules 2010, 43 (11), 5060-5065 ; Perrin, L. ; Phan, T. N. T. ; Querelle, S. ; Deratani, A. ; Bertin, D., Polystyrene-block-poly(ethylene oxide)-block-polystyrene : A new synthesis method using nitroxide-mediated polymerization from poly(ethylene oxide) macroinitiators and characterization of the architecture formed. Macromolecules 2008, 41 (19), 6942-6951.