1. “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania;2. Laboratoire Matériaux Polymères aux Interfaces, Université d'Evry Val d'Essonne, 91025 Evry, France;3. School of Engineering and Science, Jacobs University, D‐28759 Bremen, Germany
Abstract:
The paper reports on the preparation of a new 2‐rotaxane monomer through an acid coupling reaction between 1‐pyrenecarboxaldehyde and α‐CD/3,5‐diamino‐1,2,4‐triazole inclusion complex. Pyrenyl groups are large enough to provide a blocking effect toward cyclodextrin de‐threading. The oxidative C? C coupling of 2‐rotaxane in the presence of RuCl3 catalyst afforded conjugated azomethine polyrotaxanes. The expected modifications of the solubility, morphology, film forming ability for rotaxane polymer were proved. As shown by fluorescence and UV‐vis spectroscopy, a material with optical properties appropriate for use in photonics was obtained.