Aspect ratio effect of nanorod surfactants on the shape and internal morphology of block copolymer particles

Abstract

The effect of aspect ratio (AR) of nanorod surfactants on the shape and internal morphology of block copolymer (BCP) particles was systemically investigated using CuPt nanorods with different AR values ranging from 1 to 15. The positioning of the nanorods in the BCP particles was dependent strongly on their AR values, and it enabled the modulation of the interfacial properties at selective locations on the BCP particles, thus producing interesting morphological transition of the BCP particles.