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Structure factor of polymers interacting via a short range repulsive potential: application to hairy wormlike micelles | | Gladys Massiera
; Laurence Ramos
; Christian Ligoure
; Estelle Pitard
; | | Date: |
31 Jul 2003 | | Journal: | Phys Rev E, 68 (2 Pt 1), 021803 | | Abstract: | We use the random phase approximation to compute the structure factor S(q) of a solution of chains interacting through a soft and short range repulsive potential V. Above a threshold polymer concentration, whose magnitude is essentially controlled by the range of the potential, S(q) exhibits a peak whose position depends on the concentration. We take advantage of the close analogy between polymers and wormlike micelles and apply our model, using a Gaussian function for V, to quantitatively analyze experimental small angle neutron scattering profiles of solutions of hairy wormlike micelles. These samples, which consist in surfactant self-assembled flexible cylinders decorated by amphiphilic copolymer, provide indeed an appropriate experimental model system to study the structure of sterically interacting polymer solutions. | | Source: | PubMed, pmid14524997 | | Other source: | [GID 833272] cond-mat/0301123 | | Services: | Forum | Review | Favorites | |
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