Functional Supramolecular Polypeptides Involving π-π Stacking and Strong Hydrogen-Bonding Interactions: A Conformation Study toward Carbon Nanotubes (CNTs) Dispersion was written by Huang, Cheng-Wei;Mohamed, Mohamed Gamal;Zhu, Chao-Yuan;Kuo, Shiao-Wei. And the article was included in Macromolecules (Washington, DC, United States) in 2016.Recommanded Product: 1075-62-3 This article mentions the following:
New supramol. polypeptides have been prepared through simple ring-opening polymerization and “click” reactions. Postfunctionalization with diaminopyridine (DAP) moieties, capable of multiple hydrogen bonding, was an efficient approach toward forming α-helical-dominant polypeptides. The phys. crosslinked networks produced upon self-organization of the DAP units increased the glass transition temperature (Tg) of the polymers and sustained the secondary structures of the polypeptides. Addnl. thermal responsivity resulted from dynamic noncovalent bonding on the polymer side chains. Mol. recognition through heterocomplementary DAP···thymine (T) base pairs was revealed spectroscopically and then used to construct poly(γ-propargyl-
N-(6-Aminopyridin-2-yl)acetamide (cas: 1075-62-3) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ·mol−1 in pyridine vs. 150 kJ·mol−1 in benzene). Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Recommanded Product: 1075-62-3