Abstract
AbstractWe found that competing long‐range interactions of the two block chains in their binary mixtures give intriguing effects on ordered microdomain structures. One effect is a co‐surfactant effect observed when the two blocks are mixed with their junctions on common interfaces, giving rise to such effects as (i) the two lamella‐forming block copolymers give hexagonal cylinders and consequently to the increase of the interface curvatures, or (ii) a short symmetric block copolymer mixed with a large asymmetric block copolymer effectively decreases the interface curvatures, depending upon composition and molecular weight of the short block copolymer. The other effect is the one which causes two blocks macroscopically phase‐separate into different ordered domains.
Published Version
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