@inproceedings{0b5f17a3556341f4be8d01601e88fcf4,
title = "QENS from polymeric micelles in supercritical CO2",
abstract = "We report QENS measurements from PS-b-PFOA aggregates in supercritical CO2. These consist of dense cores of CO2-insoluble polystyrene surrounded by a `corona' of PFOA surfactant molecules whose CO2-philic groups interface with supercritical CO2. Lineshapes are dominated by localised diffusive modes and segmental dynamics of the anchored finite-length PFOA chains. For Q degrees similar to 0.6 Angstrom(-1), we obtain effective diffusion coefficients of approximate to 0.8x10(-6) cm(2)/sec. At higher Q, a single component is not sufficient as shown by excess intensity on the flanks. For Q>1.5 Angstrom(-1), the wings reflect contributions due to a distribution of faster, more localised chain modes.",
author = "R Triolo and Valeria Arrighi and Alessandro Triolo and P Migliardo and S Magazu and McClain, \{J B\} and D Betts and DeSimone, \{J M\} and Middendorf, \{H D\}",
note = "6th Scientific Conference on nuclear and Condensed Matter Physics, PALERMO, ITALY, OCT 14-15, 1999; Nuclear and Condensed Matter Physics: VI Regional Conference ; Conference date: 14-10-1999 Through 15-10-1999",
year = "2000",
doi = "10.1063/1.1303371",
language = "English",
isbn = "1563969297",
volume = "513",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics",
pages = "234--237",
editor = "Messina, \{Antonino \}",
booktitle = "Nuclear and Condensed Matter Physics",
address = "United States",
}