Surface attachment of gold nanoparticles on di-block copolymer template

Recently, there has been a growing interest in utilizing block copolymer templates to facilitate theprecise localization of nanoparticles. A study conducted employed polystyrene blockpolymethylacrylate (PS-b-PMA) as a template to create a layer of nano gold nanoparticles (AuNps)attached to the surface of a silicon substrate. The process involved dry reactive ion etching of asputtered ۳۰ nm gold layer on the PS-b-PMA block copolymer, resulting in the formation of a uniformlayer of ۵۰ nm AuNps. This method demonstrates the potential of using block copolymers as guidesfor nanoparticle localization, offering a promising approach for various applications innanotechnology. PS-b-PMA Block copolymer was synthesized by the ATRP method andcharacterized with FTIR, ۱H NMR, GPC, and DSC analysis. A uniform layer of AuNPs was observedby SEM images.

کلیدواژه ها:

ATRP Synthesis ، polystyrene block polymethylacrylate ، AuNps ، nanoparticle ، Blockcopolymer ، self assembly.