Polymer Synthesis Based on Self-Accelerating 1,3-Dipolar Cycloaddition Click Reactions  

作　　者：Qingquan Tang Ke Zhang 

机构地区：[1]College of Materials Science and Engineering,State Key Laboratory of New Textile Materials&Advanced Processing Technology,Wuhan Textile University,Wuhan,Hubei,430200 China [2]Laboratory of Polymer Physics and Chemistry,Beijing National Laboratory for Molecular Sciences,Institute of Chemistry,The Chinese Academy of Sciences,Beijing,100190 China [3]University of Chinese Academy of Sciences,Beijing,100049 China

出　　处：《Chinese Journal of Chemistry》2021年第11期3093-3100,共8页中国化学（英文版）

基　　金：Generous support was primarily provided by the National National Science Foundation of China(Nos.21871273,21622406 and 22001199).

摘　　要：This review reports our recent work on developing polymer synthesis methods based on a self-accelerating double-strain-promoted 1,3-dipole-alkyne cycloaddition(DSPDAC)click reaction.In DSPDAC,the cycloaddition of 1,3-dipole with the first alkyne of sym-dibenzo-1,5-cyclooctadiene-3,7-diyne(DIBOD)activates the second unreacted alkyne,which reacts with 1,3-dipole much faster than the original alkyne of DIBOD.When using DIBOD and bis-dipole compounds as monomer pairs,the self-accelerating property of DSPDAC allows us to develop a stoichiometric imbalance-promoted step-growth polymerization method.It could produce polymers with ultrahigh molecular weight in the presence of excess DIBOD monomers.When using DIBOD to ring-close linear polymers with 1,3-dipole end groups,the self-accelerating property of DSPDAC facilitates us to develop a unique bimolecular ring-closure method.It could efficiently prepare pure cyclic polymers in the presence of excess DIBOD small linkers to linear polymer precursors.

关 键 词：POLYMERIZATION Self-accelerating reaction Click chemistry Cyclic polymer Reactive intermediates 

分 类 号：O62[理学—有机化学]