Stereochemically Controlled PMMA-Exfoliated Silicate Nanocomposites Using Intergallery-Anchored Metallocenium Cations

Representative C2v-, C2-, and Cs-symmetric metallocene complexes were effectively anchored inside the silicate galleries via a non-cation-exchange approach involving protonolysis. These intergallery-anchored metallocenium cations allow for the first synthesis of in situ polymerized nanocomposites comprising exfoliated silicate nanoplatelets homogeneously dispersed in the atactic, isotactic, or syndiotactic PMMA matrixes.