title: Starlike micelles with starlike interactions: a quantitative evaluation of structure factors and phase diagram.
abstract: Starlike PEP-PEO block copolymer micelles offer the possibility to investigate the phase behavior and interactions of regular star polymers (ultrasoft colloids). Micellar functionality f can be smoothly varied by changing solvent composition (interfacial tension). Structure factors obtained by small-angle neutron-scattering can be quantitatively described in terms of an effective potential for star polymers. The experimental phase diagram reproduces to a high level of accuracy the predicted liquid-solid transition. Whereas for intermediate f a bcc phase is observed, for high f the formation of a fcc phase is preempted by glass formation.
authors.affiliation: Institut für Festkörperforschung, Forschungszentrum Jülich, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Laurati
authors.forename: J
authors.initials: J
authors.lastname: Stellbrink
authors.forename: R
authors.initials: R
authors.lastname: Lund
authors.forename: L
authors.initials: L
authors.lastname: Willner
authors.forename: D
authors.initials: D
authors.lastname: Richter
authors.forename: E
authors.initials: E
authors.lastname: Zaccarelli