Hydrophobic Interaction in Surfactants and Hydrocarbons from the Pore Scale to the Reservoir Scale Margaret S. Cheung, University of Houston, Houston, TX 77204 The polymer collapse rates were greatest when the shape of nanosized confinement follows the conformations transitioning from unfolded to folded states. Pancake-shaped nanocontainer best enhances rates of polymer collapse Dominant conformations of a hexane in nano- water droplet depend on the size of the droplet Free energy as a function of end-to-end distance of a hexane in water droplets of varying sizes Hexane in a nano water droplet In all-atom representation