ORGANIZATION OF POLY(ETHYLENE OXIDE) MONOLAYERS AT THE AIR-WATER-INTERFACE by Henderson, J, Richards, R, Penfold, J, Thomas, R, Lu, J

“…Poly(ethylene oxide) has been spread at the air-water interface and the organization of the layer investigated using surface pressure isotherms and neutron reflectometry. Surface pressure data lead to the conclusion that the spread polymer is i a thermodynamically favorable environment on pure water which becomes worse as magnesium sulfate is added to the aqueous subphase.Neutron reflectometry data have been analyzed using both optical matrix and kinematic approximation methods. …”

ADSORPTION OF AMMONIUM PERFLUOROOCTANOATE AND AMMONIUM DECANOATE AT THE AIR SOLUTION INTERFACE by Simister, E, Lee, E, Lu, J, Thomas, R, Ottewill, R, Rennie, A, Penfold, J

“…In each case it was necessary to include fugacity corrections and to fit the surface pressure-In c curve by least squares for there to be agreement with the surface excess as measured by neutron reflection. …”

STRUCTURE OF ADSORBED LAYERS OF ETHYLENE-GLYCOL MONODODECYL ETHER SURFACTANTS WITH ONE, 2, AND 4 ETHYLENE-OXIDE GROUPS, AS DETERMINED BY NEUTRON REFLECTION by Lu, J, Li, Z, Su, T, Thomas, R, Penfold, J

“…The structures of the adsorbed layers have been determined at the critical micelle concentration (cmc), at a constant surface pressure of 38 mN m-1, and at a constant area per molecule of 55 A2. …”