Functional Hyperbranched Polythioamides Synthesized from Catalyst-free Multicomponent Polymerization of Elemental Sulfur  

作　　者：Shangrun Liu Fengting Li Wenxia Cao Rongrong Hu Ben Zhong Tang 

机构地区：[1]State Key Laboratory of Luminescent Materials and Devices,Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates,South China University of Technology,Guangzhou,Guangdong 510640,China [2]Shenzhen Institute of Molecular Aggregate Science and Engineering,School of Science and Engineering,The Chinese University of Hong Kong,Shenzhen City,Guangdong 518172,China [3]AIE Institute,Guangzhou,Guangdong 510530,China [4]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

出　　处：《Chinese Journal of Chemistry》2022年第6期725-733,共9页中国化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(21822102,21788102,52173005,and 21774034);the Natural Science Foundation of Guangdong Province(2016A030306045);Guangdong Special Support Program(2017TQ04C901);the Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates(2019B030301003)。

摘　　要：Hyperbranched polymers with unique topological structures,large number of branching sites and terminal groups have attracted much attention,and are expected to possess advanced functionalities compared with their linear polymer counterparts.The devel-opment of hyperbranched polymers is hence highly desired but challenging,especially for sulfur-containing polymers which are at-tractive metal absorbents,optical materials,dielectric materials,and self-healing materials.In this work,six hyperbranched polythi-oamides with various topological structures,well-defined repeating units,satisfying yields(up to 99%),and high molecular weights(up to 101400 g/mol)were successfully designed and synthesized from the catalyst-free multicomponent polymerization of ele-mental sulfur,aromatic alkynes and aliphatic amines,through different monomer combination strategies based on the designed three-or four-functional alkyne and amine monomers.The hyperbranched polythioamides possess unique luminescence property,and strong affinity toward Hg^(2+),which can be utilized in the fluorescence detection of Hg^(2+),as well as mercury removal from aque-ous solutions with high efficiency of 99.99%and low mercury residue of 0.1 ppb.Hyperbranched polythioamides with unique struc-tures may be developed to a group of fascinating materials and find their potential applications as metal absorbents and optoelec-tronic materials.

关 键 词：Hyperbranched polymer Polythioamide POLYMERIZATION Sulfur MERCURY 

分 类 号：O62[理学—有机化学]