Movie S1.

Movie illustrating the spontaneous partitioning of PEG–PBLG macroinitiators towards the interface due to PEG segments touching the interface in molecular dynamics simulation. The interface was set as z = 0 nm, 9 PEG–PBLGs were placed at z = -3 nm initially at t = 0 ns, with the PEG segments touching the interface. The molecules were then simulated for 30 ns. The PEG chains initially touching the interface rapidly dragged the PEG–PBLGs from the DCM phase to the interface corresponding to the minimum of the PMF and most favorable location of the molecule (Fig. 1G). Two replicas of the fundamental simulation cell are shown connected through the periodic boundary.