title: Rubberlike dynamics in sulphur above the lambda-transition temperature.
abstract: The high-frequency acoustic dynamics of sulfur across the liquid-liquid, lambda transition has been studied using inelastic x-ray scattering. The combination of these high-frequency data with lower frequency, literature data indicates that liquid sulfur develops, in the high-temperature, polymeric solution phase, some characteristic features of a rubber. In particular, entanglement coupling among polymeric chains plays a relevant role in the dynamics of this liquid phase.
authors.affiliation: European Synchrotron Radiation Facility, Boîte Postale 220, 38043 Grenoble, France.
authors.forename: G
authors.initials: G
authors.lastname: Monaco
authors.forename: L
authors.initials: L
authors.lastname: Crapanzano
authors.forename: R
authors.initials: R
authors.lastname: Bellissent
authors.forename: W
authors.initials: W
authors.lastname: Crichton
authors.forename: D
authors.initials: D
authors.lastname: Fioretto
authors.forename: M
authors.initials: M
authors.lastname: Mezouar
authors.forename: F
authors.initials: F
authors.lastname: Scarponi
authors.forename: R
authors.initials: R
authors.lastname: Verbeni