title: Highly ordered nanoporous films from supramolecular diblock copolymers with hydrogen-bonding junctions.
abstract: We designed efficient precursors that combine complementary associative groups with exceptional binding affinities and thiocarbonylthio moieties enabling precise RAFT polymerization. Well defined PS and PMMA supramolecular polymers with molecular weights up to 30 kg mol(-1) are synthesized and shown to form highly stable supramolecular diblock copolymers (BCPs) when mixed, in non-polar solvents or in the bulk. Hierarchical self-assembly of such supramolecular BCPs by thermal annealing affords morphologies with excellent lateral order, comparable to features expected from covalent diblock copolymer analogues. Simple washing of the resulting materials with protic solvents disrupts the supramolecular association and selectively dissolves one polymer, affording a straightforward process for preparing well-ordered nanoporous materials without resorting to crosslinking or invasive chemical degradations.
authors.affiliation: Laboratoire d'Ingénierie des Matériaux Polymères (UMR CNRS 5223) Institut National des Sciences Appliquées (INSA-Lyon)-Université Lyon 1, 17 av. Jean Capelle, 69621 Villeurbanne (France).
authors.forename: Damien
authors.initials: D
authors.lastname: Montarnal
authors.affiliation: Laboratoire d'Ingénierie des Matériaux Polymères (UMR CNRS 5223) Institut National des Sciences Appliquées (INSA-Lyon)-Université Lyon 1, 17 av. Jean Capelle, 69621 Villeurbanne (France).
authors.forename: Nicolas
authors.initials: N
authors.lastname: Delbosc
authors.affiliation: Laboratoire d'Ingénierie des Matériaux Polymères (UMR CNRS 5223) Institut National des Sciences Appliquées (INSA-Lyon)-Université Lyon 1, 17 av. Jean Capelle, 69621 Villeurbanne (France).
authors.forename: Cécile
authors.initials: C
authors.lastname: Chamignon
authors.affiliation: Laboratoire d'Ingénierie des Matériaux Polymères (UMR CNRS 5223) Institut National des Sciences Appliquées (INSA-Lyon)-Université Lyon 1, 17 av. Jean Capelle, 69621 Villeurbanne (France).
authors.forename: Marie-Alice
authors.initials: MA
authors.lastname: Virolleaud
authors.affiliation: Materials Research Laboratory, University of Santa Barbara (USA).
authors.forename: Yingdong
authors.initials: Y
authors.lastname: Luo
authors.affiliation: Materials Research Laboratory, University of Santa Barbara (USA).
authors.forename: Craig J
authors.initials: CJ
authors.lastname: Hawker
authors.affiliation: Laboratoire d'Ingénierie des Matériaux Polymères (UMR CNRS 5223) Institut National des Sciences Appliquées (INSA-Lyon)-Université Lyon 1, 17 av. Jean Capelle, 69621 Villeurbanne (France).
authors.forename: Eric
authors.initials: E
authors.lastname: Drockenmuller
authors.affiliation: Laboratoire d'Ingénierie des Matériaux Polymères (UMR CNRS 5223) Institut National des Sciences Appliquées (INSA-Lyon)-Université Lyon 1, 17 av. Jean Capelle, 69621 Villeurbanne (France). julien.bernard@insa-lyon.fr.
authors.forename: Julien
authors.initials: J
authors.lastname: Bernard
keywords: RAFT agents; hydrogen bonding; nanoporous membranes; supramolecular diblock copolymers