Helical Polyaniline Nanofibers Induced by Chiral Dopants by a Polymerization Process

摘要

Chirality is widely expressed in organic materials, perhaps most notably in biological molecules such as DNA and proteins, owing to the homochirality of their components (d-su-gars and L-amino acids). Chiral materials have shown potential applications in materials science, chemical and biological sensors, catalysis, pharmaceutics, and enantioselective separation. Chirality can be expressed at different levels, from chiral small molecules to helical conformation of macromole-cules, and even to helical nanostructures and supramolecular structures. Weak inter- and intramolecular interactions, including hydrogen bonding, solvophobic interaction, jc-jt interactions, and chiral templates, play an important role in forming helical architectures.