Self-assembled polymers based on bis-tetra-urea calix[4]arenes connected via the wide rim

Volker Böhmer (1)

1 Pharmazie und Geowissenschaften

Six double calixarenes were synthesized in which two tetra-urea calix[4]arenes are linked by a rigid spacer between the urea functions at their wide rim. The dimerization of their tetra-urea parts leads to hydrogen bonded polymeric assemblies in apolar solvents. Addition of the stoechiometric amount of a tetra-tosylurea calix[4]arene disrupts the polymeric structures due to the preferred formation of heterodimeric capsules between tetra-aryl and tetra-tosylurea calix[4]arenes. The existence of polymeric assemblies was further established by AFM studies on spin coated samples.

Mots clés: Physical Sciences

Volker Böhmer. Self-assembled polymers based on bis-tetra-urea calix[4]arenes connected via the wide rim. Supramolecular Chemistry, 2008, 20 (01-02), pp.59-69. ⟨10.1080/10610270701742561⟩. ⟨hal-00513519⟩