Abstract
Hydrogen bonding (HB) interaction is one－two order weaker in energy than covalent bond. HB based network polymers therefore dynamically change their conformation according to HB cleavage and re-forming caused by external stimuli. This article overviews HB-based supramolecular formation from compounds bearing ureido-pyrimidone groups, amino acid and peptide derived gelators, cis-stereoregulated poly(ω-alkynylamide)s and poly(phenyleneethynylene)s that form secondary structures stabilized by HB.
