Abstract
Homoditopic host 2 selectively encapsulates C60 moieties grafted onto a polymer chain. Furthermore, this process creates a remarkably stable cross-linkage, leading to an increase in molecular weight and unique morphological changes to the polymer in its solid state. The stability of the supramolecular cross-linkage directly depends upon the solvent; thus, the supramolecular cross-linkage of the polymer can be reversibly regulated by the solvent system. The macroscopic solid-state morphologies of poly-1b are highly influenced by supramolecular cross-linking. Nanoparticle-like morphologies are probably favored by the immiscible nature of the C60 moiety, but supramolecular cross-linking makes the polymer bundle together to form uniform fibrils. These, in turn, align into a well-oriented 2D array on a HOPG surface.
