416899-35-9Relevant academic research and scientific papers
Highly Ordered Nanoporous Films from Supramolecular Diblock Copolymers with Hydrogen-Bonding Junctions
Montarnal, Damien,Delbosc, Nicolas,Chamignon, Cécile,Virolleaud, Marie-Alice,Luo, Yingdong,Hawker, Craig J.,Drockenmuller, Eric,Bernard, Julien
, p. 11117 - 11121 (2016/07/06)
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?1are 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.
A noncovalent approach to antiparallel β-sheet formation
Zeng, Huaqiang,Yang, Xiaowu,Flowers II, Robert A.,Gong, Bing
, p. 2903 - 2910 (2007/10/03)
Four tripeptide chains, when attached to the same end of a hydrogen-bonded duplex (1.2) with the unsymmetrical, complementary sequences of ADAA/DADD, have been brought into proximity, leading to the formation of four hybrid duplexes, 1a·2a, 1a·2b, 1b·2a,
