STATIC SCATTERING FROM CYCLIC COPOLYMERS IN SOLUTION

The static scattering properties of cyclic diblock copolymers in solut ion are studied. The case of a symmetric diblock in a solvent satisfyi ng the optical theta condition is considered in details. The results s how substantial differences with respect to linear diblock copolymers. The additional entropic interaction in cyclic chains induces a decrea se of the scattering intensity and a shift of the location of its maxi mum to a higher q value. This results in a substantial compatibility e nhancement as compared to linear copolymers.