Supramolecular polymers generated from heterocomplementary monomers linked through multiple hydrogen-bonding arrays - Formation, characterization, and properties

被引:0
作者
Berl, V
Schmutz, M
Krische, MJ
Khoury, RG
Lehn, JM
机构
[1] Univ Strasbourg 1, ESA 7006, CNRS, ISIS,Lab Chim Supramol, F-67000 Strasbourg, France
[2] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany
[3] CU Strasbourg, CNRS INSERM ULP, Inst Genet & Biol Mol & Cellulaire, F-67404 Illkirch Graffenstaden, France
关键词
dynamic materials; hydrogen bonds; polymers; self-assembly; supramolecular chemistry;
D O I
10.1002/1521-3765(20020301)8:5<1227::AID-CHEM1227>3.0.CO;2-0
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Supramolecular polymers are described that are derived from the association of two homoditopic heterocomplementary monomers through sextuple hydrogen-bonding at-rays. They form fibers and a variety of different materials depending on the conditions. The strong affinity of the DAD-DAD (D donor, A = acceptor) hydrogen-bonding sites for double-faced cyanuric acid type wedges drives the supramolecular polymeric assembly in apolar and chlorinated organic solvents. The marked influence of stoichiometry, as well as end-capping and cross-linking agents upon fiber fort-nation is revealed in solution and by electron microscopy (EM). The results further contribute to the development of a supramolecular polymer chemistry that comprizes reversible polymers formed through recognition-controlled noncovalent connections between the molecular components. Such materials are, by nature, dynamic and present adaptive character in view of their ability to respond to external stimuli.
引用
收藏
页码:1227 / 1244
页数:18
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