Visible-light-induced synthesis of polymers with versatile end groups mediated by organocobalt complexes. Issue 39 (14th August 2017)

• Record Type: Journal Article
• Authors: Liu, Xu; Tian, Lei; Wu, Zhenqiang; Zhao, Xianyuan; Wang, Zikuan; Yu, Donggeng; Fu, Xuefeng
• Is Part Of: Polymer chemistry. Volume 8:Issue 39(2017)
• Page Start: 6033
• Page End: 6038
• Publication Date: 2017-08-14
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/c7py01086a
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : Synthesis of polymers with well-defined functional groups at α and ω ends by using carefully designed organocobalt complexes has been accomplished. Abstract : Synthesis of polymers with well-defined functional groups at α and ω ends remains a major challenge in polymer chemistry. We report a versatile method to prepare polymers with various functional groups at α ends without tedious post-modification by using carefully designed organocobalt complexes ((salen)Co-R) as the catalyst. The ω ends of (salen)Co were further functionalized to the hydroxyl group. Both of the more active monomers (MAM; acrylates and acrylamides) and less active monomers (LAM; vinyl acetate) could be controlled to produce homo and various block copolymers with a predetermined molecular weight, narrow polydispersity and high level of polymer end fidelity under visible light irradiation. More importantly, the polymers are prepared and functional groups are installed simultaneously during the propagation process, including alkynyl, tert -butyl, phenyl, cyclohexyl, fluoride, chloride, furyl, or thienyl groups at the α ends.