3 years ago

Tetrablock Metallopolymer Electrochromes

Didier Astruc, Patricia Castel, Sergio Moya, Roberto Ciganda, Ricardo Hernandez, Haibin Gu, Jaime Ruiz
Multi-block polymers are highly desirable for their addressable functions that are both unique and complementary among the blocks. With metal-containing polymers, the goal is even more challenging insofar as the metal properties may considerably extend the materials functions to sensing, catalysis, interaction with metal nanoparticles and electro- or photochrome switching. Ring-opening-metathesis polymerization (ROMP) has become available for the formation of living polymers using highly efficient initiators such as the 3rd-generation Grubbs catalyst [RuCl2(NHC)(=CHPh)(3-Br-C5H4N)2], 1. Among the 24 possibilities to introduce 4 blocks of metallopolymers into a tetrablock metallocopolymer by ROMP using the catalyst 1, we have disclosed two viable pathways. The synthesis, characterization, electrochemistry, electron-transfer chemistry and remarkable electrochromic properties of these new nanomaterials are presented herein.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201712945

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