Macromolecular Rapid Communications
Macromolecular Rapid Communications
5 years ago

New ROMP Synthesis of Ferrocenyl Dendronized Polymers

New ROMP Synthesis of Ferrocenyl Dendronized Polymers
Lianxiang Song, Didier Astruc, Ying Zhang, Li Zhao, Haibin Gu, Jaime Ruiz, Guirong Qiu, Qiangjun Ling, Xiong Liu, Yinghong Wang
First- and second-generation Percec-type dendronized ferrocenyl norbornene macromonomers containing, respectively, three and nine ferrocenyl termini are synthesized and polymerized by ring-opening metathesis polymerization using Grubbs' third-generation olefin metathesis catalyst with several monomer/catalyst feed ratios between 10 and 50. The rate of polymerization is highly dependent on the generation of the dendronized macromonomers, but all these ring-opening metathesis polymerization reactions are controlled, and near-quantitative monomer conversions are achieved. The numbers of ferrocenyl groups obtained are in agreement with the theoretical ones according to the cyclic voltammetry studies as determined using the Bard–Anson method. Dendronized norbornenes containing three or nine ferrocenyl termini are polymerized in a controller manner using Grubbs' third-generation olefin metathesis catalyst with various monomer/catalyst feed ratios. The numbers of ferrocenyl groups are in agreement with the theoretical ones according to cyclic voltammetry studies using the Bard–Anson method.

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

DOI: 10.1002/marc.201700448

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