Star-shaped amino-functionalized poly(glycerol methacrylate)-stabilized gold nanoparticle composites with catalytic activity for reduction of 4-nitrophenol

Polymers containing amine moieties reduce Au(III) and stabilize gold nanoparticles (AuNPs). Such polymers can be used to synthesize AuNPs with controlled sizes and shapes, providing high stability to the colloidal solutions. A star amino-functionalized poly(glycidyl methacrylate) (PGMA) can quickly be prepared by epoxide ring-opening reactions. We functionalized the β-cyclodextrin-(PGMA)7 with diethanolamine (DEA) to create a star polymer...