Regenerable-Catalyst-Aided, Opened to Air and Sunlight-Driven "CuAAC&ATRP" Concurrent Reaction for Sequence-Controlled Copolymer

Weidong Zhang, Wentao Xue, Wen Ming, Yuyan Weng, Gaojian Chen, David M. Haddleton

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

An ideal stimuli-responsive controlled/living radical polymerization should have the ability to manipulate the reaction through spatiotemporal "on/off" controls, achieving the polymerization under fully open conditions and allowing for precise control over macromolecular architecture with defined molecular weights and monomer sequence. In this contribution, the photo (sunlight)-induced electron transfer atom transfer radical-polymerization (PET-ATRP) can be realized to be reversibly activated and deactivated under fully open conditions utilizing one-component copper(II) thioxanthone carboxylate as multifunctional photocatalyst and oxygen scavenger. The polymerization behaviors are investigated, presenting controlled features with first-order kinetics and linear relationships between molecular weights and monomer conversions. More importantly, "CuAAC&ATRP" concurrent reaction combining PET-ATRP, photodriven deoxygenation, and photoactivated CuAAC click reaction is successfully employed to synthesize the sequence-defined multiblock functional copolymers, in which the iterative monomer additions can be easily manipulated under fully open conditions.

Original languageEnglish
Article number1700511
Number of pages7
JournalMacromolecular Rapid Communications
Volume38
Issue number22
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • CuAAC reaction
  • Oxygen tolerance
  • PET-ATRP
  • Regenerable catalysts
  • Sequence-control

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