Abstract
The macrophase-separated structure formed in a toluene-cast film of a 5/95 wt%/wt% blend of a lamellar-forming polystyrene-block-polyisoprene diblock copolymer and homopolystyrene in the dry-brush regime was investigated by laser scanning confocal microscopy (LSCM). Contrast in LSCM was successfully obtained by reflections from the microdomain interfaces formed by the block copolymer in block copolymer-rich macrodomains dispersed in a homopolystyrene-rich matrix. It has been proved that LSCM is a powerful technique to study macrophase-separated structures of block copolymer/homopolymer blends.
