13736-58-8Relevant articles and documents
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.
Oligoamide duplexes as organogelators
Cao, Ruikai,Zhou, Jingjing,Wang, Wei,Feng, Wen,Li, Xianghui,Zhang, Penghui,Deng, Pengchi,Yuan, Lihua,Gong, Bing
supporting information; experimental part, p. 2958 - 2961 (2010/09/15)
Oligoamide duplexes carrying multiple alkyl side chains were found to serve as gelators for aromatic solvents. The double-stranded backbone was essential for the hierarchical self-assembly of the molecular duplex into fibers of high aspect ratios. The demonstrated gelating abilities may be extended to a large family of analogous H-bonded duplexes having different H-bonding sequences, leading to a unique platform for developing a diverse variety of potential gelators based on a supramolecular and/or a dynamic covalent approach.
Synthesis and single-molecule studies of a well-defined biomimetic modular multidomain polymer using a peptidomimetic β-sheet module
Roland, Jason T.,Guan, Zhibin
, p. 14328 - 14329 (2007/10/03)
In the pursuit of advanced biomaterials with combined strength, toughness, and elasticity, a new class of well-defined modular polymers has been synthesized, and their nanomechanical properties have been studied using atomic force microscopy. These polymers are based on a peptidomimetic β-sheet-based double-closed loop (DCL) module, which was designed to overcome the limitation of the modular polymers we reported previously (J. Am. Chem. Soc. 2004, 126, 2059). Single-molecule force-extension experiments revealed the sequential unfolding of these modules as the polymer is stretched, resulting in more regular sawtooth-patterned curves similar to those seen in titin and other biopolymers. The single-molecule data agreed well with computer modeling, which suggested that hydrogen bonding and π-stacking are both involved in the formation of small DCL clusters along the polymer chain. Copyright
