Elastic scattering and relaxation modes of cyclic diblock copolymer chains in solution: Rouse model

R. Borsali, M. Benmouna and H. Benoît

Physica A: Statistical Mechanics and its Applications, 1993, vol. 201, issue 1, 129-137

Abstract: In this work the static and dynamic scattering properties of (A-B)r ring diblock copolymer satisfying the optical theta condition is considered in detail. The results show substantial differences with respect to linear diblock copolymers. This is mainly due to the effect of connectivity of the chain extremities A and B, leading to different conformations for both types of diblock copolymer chains. The additional entropic interaction in cyclic chains induces a decrease of the scattering intensity and a shift of the location of its maximum to a higher q value. As for the dynamic (in the Rouse model), the fact that the two extremities are connected speeds up the frequency of the interdiffusion mode and shift its minimum to higher q value.

Date: 1993
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:201:y:1993:i:1:p:129-137

DOI: 10.1016/0378-4371(93)90409-W

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