Polymer Constructed Through the Formation of Carbon-Carbon Triple Bonds: Reductive Coupling Polymerization of Bis(benzylic gem-tribromide)s

Limei Ren; Xiaoyan Xu; Qi Wang

doi:10.1021/acsmacrolett.8b00257

Polymer Constructed Through the Formation of Carbon-Carbon Triple Bonds: Reductive Coupling Polymerization of Bis(benzylic gem-tribromide)s

ACS Macro Lett. 2018 Jun 19;7(6):604-608. doi: 10.1021/acsmacrolett.8b00257. Epub 2018 May 14.

Authors

Limei Ren¹, Xiaoyan Xu¹, Qi Wang¹

Affiliation

¹ MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, P. R. China.

PMID: 35632963
DOI: 10.1021/acsmacrolett.8b00257

Abstract

Ethynylene-bridged polymers are currently synthesized by alkyne metathesis polymerization or Pd-catalyzed coupling between diethynylarene and dihaloarene. We report the formation of C≡C linkages in reductive coupling polymerization of bis(benzylic gem-tribromide)s promoted by Cu/polyamine under mild conditions. The polymer backbone was constructed through cascade formation of (Br)C═C(Br) bonds and C≡C bonds. This protocol provides a new method for synthesis of ethynylene-bridged polymers using monomers without alkynyl groups.