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Specular reflectivity for di-C18-PC floating bilayer. Diamonds, an adsorbed sample in the gel phase (25°C); open circles, in the fluid phase (56°C), shifted by 10–4 for clarity; filled circles, a grafted sample in fluid phase (57°C), shifted by 10–8. Solid lines are fits to the data of the 1G-hybrid box model used to determine the structural parameters.
