Surface-initiated Vapor Deposition Polymerization of Poly (γ-benzyl-L- glutamate) Ultrathin Films

摘要

Poly (amino acid) chains grafted to a surface can demonstrate strikingly high electromechanical and electrooptical efficiency as well as reversible response to an external trigger, and show promise for applications such as biosensors, biomedical coatings, biomineralization, chiral separation membranes, and optical storage and display devices. Grafting can be achieved either via one-step chemical bonding between reactive end-groups of preformed poly(amino acids) and complementary reactive groups on a substrate, known as the grafting-to method, or by ring-opening polymerization (ROP) of α-amino acid N-carboxyanhydride (NCA) monomer initiated by primary-amine groups on a substrate, known as the grafting-from method. The grafting-from method can achieve higher grafting density.