title: Spontaneous Amino-yne Click Polymerization: A Powerful Tool toward Regio- and Stereospecific Poly(β-aminoacrylate)s.
abstract: Efficient synthesis of poly(enamine)s has been a great challenge because of their poor stability, poor solubility, and low molecular weights. In this work, a spontaneous amino-yne click polymerization for the efficient preparation of poly(enamine)s was established, which could proceed with 100% atom efficiency under very mild conditions without any external catalyst. Through systematic optimization of the reaction conditions, several soluble and thermally stable poly(β-aminoacrylate)s with high molecular weights (Mwup to 64400) and well-defined structures were obtained in excellent yields (up to 99%). Moreover, the polymerization can perform in a regio- and stereospecific fashion. Nuclear magnetic resonance spectra analysis revealed that solely anti-Markovnikov additive products with 100% E-isomer were obtained. The reaction mechanism was well demonstrated with the assistance of density functional theory calculations. In addition, by introducing the tetraphenylethene moiety, the resulting polymers exhibit unique aggregation-induced emission characteristics and could be applied in explosives detection and bioimaging. This polyhydroamination is a new type of click polymerization and opens up enormous opportunities for preparing functional polymeric materials.
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Benzhao
authors.initials: B
authors.lastname: He
authors.affiliation: Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: Huifang
authors.initials: H
authors.lastname: Su
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Tianwen
authors.initials: T
authors.lastname: Bai
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Yongwei
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Shiwu
authors.initials: S
authors.lastname: Li
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Meng
authors.initials: M
authors.lastname: Gao
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Rongrong
authors.identifier: 0000-0002-7939-6962
authors.initials: R
authors.lastname: Hu
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Zujin
authors.identifier: 0000-0002-0618-6024
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Anjun
authors.identifier: 0000-0001-7158-1808
authors.initials: A
authors.lastname: Qin
authors.affiliation: MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Jun
authors.identifier: 0000-0002-0365-1381
authors.initials: J
authors.lastname: Ling
authors.affiliation: Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.|Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: Ben Zhong
authors.initials: BZ
authors.lastname: Tang