The Order-Disorder Transition in Diblock Copolymer/Homopolymer and Diblock Copolymer/Diblock Copolymer Blends

摘要

Diblock copolymers and their blends have attracted extensive theoretical and experimental interest due to their wide range of unique morphologies and the industrial and scientific importance of these materials. Block copolymers are used in an array of industrial products. In addition, the nature of the ODT is an interesting problem in polymer physics. Initial studies of dibloek copolymers in the weak segregation limit (close to ODT) concentrated on the deviation from linearity in the dependence of the reciprocal peak scattered intensity, Im"1, on 1/T [1-7]. This behavior was predicted by the mean field theory of Leibler [8] and such calculations were extended to blends as well [9].