Silver Ion-induced the Preparation of Polyelectrolyte Complex Nanoparticles
To date,significant interest has been garnered in the design and fabrication of su-pramolecular assemblies driven by non-covalent molecular interactions.In particular,poly-electrolyte complexes,formed from two oppositely charged species in aqueous solution show great importance in many biochemical processes that are of great value.We prepared a series of carboxylic acid-containing homopolypeptoids(PNAG-COOH)and(PNPG-(COOH)2)by a combination of ring-opening polymerization(ROP)and post-modification.The polyelec-trolyte complex nanoparticles assembled from negatively charged homopolypeptoid and silver ion by electrostatic interaction in aqueous solution.The influence of the charge mixing ratio and side chain geometry on the morphology of the complex were further investigated.By adding ascorbic acid to the complex solution,uniformly dispersed silver nanoparticles were successfully obtained.
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