Step Transfer‐Addition and Radical‐Termination (START) Polymerization of α, ω‐Unconjugated Dienes under Irradiation of Blue LED Light. Issue 13 (11th November 2016)

• Record Type: Journal Article
• Authors: Xu, Tianchi; Yin, Hongnan; Li, Xiaohong; Zhang, Lifen; Cheng, Zhenping; Zhu, Xiulin
• Other Names: Boyer C. A. guestEditor.; Miyake G. M. guestEditor.
• Is Part Of: Macromolecular rapid communications. Volume 38:Issue 13(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-11-11
• Subjects: α, ω‐unconjugated dienes -- alternating copolymers -- fluorine -- photocatalysis -- step transfer‐addition and radical‐termination (START); Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201600587
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract : A new polymerization method, termed as step transfer‐addition and radical‐termination, is developed for the step‐growth radical polymerization of α, ω‐unconjugated dienes under irradiation of visible light at room temperature (25 °C) for the first time. α, ω‐Diiodoperfluoroalkane monomers (signified asA ) are added onto α, ω‐unconjugated dienes (signified asB ) alternatively and efficiently with the generation of perfluorocarbon‐containing alternating copolymers (AB ) n . Based on the combined analyses of polymerization kinetics and NMR spectra ( 1 H and 19 F), the mechanism of the novel polymerization method, including the side reaction, is proposed. This novel polymerization method provides a new strategy not only for the step‐growth radical polymerization of α, ω‐unconjugated dienes but also for the construction of high molecular weight perfluorocarbon‐containing alternating copolymers. Abstract : A novel polymerization method, step transfer‐addition and radical‐termination, suitable for α, ω‐unconjugated dienes has been discovered through the construction of perfluorocarbon‐containing alternating copolymers under irradiation of visible light at room temperature for the first time.