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Highly Ordered Nanoporous Films from Supramolecular Diblock Copolymers with Hydrogen‐Bonding Junctions
Author(s) -
Montarnal Damien,
Delbosc Nicolas,
Chamig Cécile,
Virolleaud MarieAlice,
Luo Yingdong,
Hawker Craig J.,
Drockenmuller Eric,
Bernard Julien
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201504838
Subject(s) - supramolecular chemistry , copolymer , nanoporous , supramolecular polymers , polymerization , materials science , polymer , hydrogen bond , supramolecular assembly , polymer chemistry , self assembly , raft , nanotechnology , molecule , chemistry , organic chemistry , composite material
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.