The microstructure and fracture performance of styrene ...
· The 'E21' SBM block copolymer has a higher butadiene content and molecular weight than the 'E41'. A network of aggregated spherical micelles was observed for the E21 SBM modified epoxy, which became increasingly interconnected as the SBM content was increased. A steady increase in the fracture energy was measured with increasing E21 content, from 96 to .