Stoichiometric Imbalance-promoted Step-growth Polymerization Based on Self-accelerating Three-component Reaction  

作　　者：ZHANG Yu ZHENG Jianzhi LI Xijuan WU Ying ZHANG Ke 

机构地区：[1]Institute of Polymer Chemistry and Physics,Beijing Key Laboratory of Energy Conversion and Storage Materials,College of Chemistry,Beijing Normal University,Beijing 100875,P.R.China [2]Laboratory of Polymer Physics and Chemistry,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,P.R.China [3]University of Chinese Academy of Sciences,Beijing 100049,P.R.China

出　　处：《Chemical Research in Chinese Universities》2023年第5期822-828,共7页高等学校化学研究（英文版）

基　　金：This work was supported by the National Key Research and Development Program of China(No.2019YFA0210400);the National Natural Science Foundation of China(No.22071255).

摘　　要：Aself-accelerating three-component reaction was developed using the secondary amines,CS_(2),and sym-dibenzo-1,5-cyclooctadiene-3,7-diyne(DIBOD)as reactants.In this three-component reaction,the secondary amine reacts with CS_(2) to form dithiocarbamate anion,which subsequently in-situ reacts with DIBOD behaving a self-accelerating reaction property.Specifically,the reaction of dithiocarbamate anion with the first alkyne of DIBOD activates the unreacted alkyne,which reacts with dithiocarbamate anion much faster than the original alkyne of DIBOD.Using the self-accelerating three-component reaction as polymerization reaction,a stoichiometric imbalance-promoted step-growth polymerization method was developed using the difunctional secondary amines,CS_(2),and DIBOD as monomer groups.This novel three-component polymerization can quickly produce high molecular weight dithiocarbamate-containing polymers under mild conditions using a slight molar excess of DIBOD to difunctional secondary amine monomer.Containing sulfur elements in the backbones,the resultant polymers hold high refractivity and may find potential applications in optical and optoelectronic fields.

关 键 词：Self-accelerating three component reaction Stoichiometric imbalance-promoted three component polymerization Dithiocarbamate-containing polymer 

分 类 号：O62[理学—有机化学]