Fig. 6.

A cartoon depicting the adsorption and orientation of PAA and PMA at the CCl₄-H₂O interface under different pH conditions. (A) Adsorption of PAA and atactic PMA below the critical pH, where randomly coiled polymer continues to adsorb to the subsurface after the initial oriented layer. (B) Isotactic PMA where there is an initial highly oriented layer observed, but the stretched out configuration of isotactic PMA prevents continued adsorption to the subsurface. (C) The lack of interfacial polymer adsorption and the neat CCl₄-H₂O interface.