Interpolymer Association of Cholesterol Pendants Linked to a Polyelectrolyte As Studied by Quasielastic Light Scattering and Fluorescence Techniques

摘要: The association behavior of random copolymers sodium 2-(acrylamido)-2-methylpropanesulfonate (AMPS) and cholesteryl 6-methacryloyloxyhexanoate (Chol-C5-MA) in 0.1 M NaCl aqueous solutions was investigated by quasielastic light scattering fluorescence techniques to gain further insights into the structures properties their “intermolecularly bridged flower-type micelles” which we had proposed previously. When Chol-C5-MA content copolymer as low 1 mol %, unimers were found coexist with interpolymer aggregates independent polymer concentration (CP) a range < CP 10 g/L. However, when increased 5 virtually all chains form multipolymer can be viewed an assembly micelles where are “cross-linked” via Chol associations. aggregation number moieties estimated 17−19 for % time-resolved quenchin...