文献类型：期刊文献

英文题名：Synthesis of Dendronized Polymers on the Au(111) Surface

作者：Zhu, Ya-Cheng[1];Xue, Fu-Hua[1];Kang, Li-Xia[1];Liu, Jian-Wei[1];Wang, Ying[1];Li, Deng-Yuan[1];Liu, Pei-Nian[1]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Key Lab Adv Mat, Shanghai Key Lab Funct Mat Chem,State Key Lab Chem, Shanghai 200237, Peoples R China

年份：2022

卷号：13

期号：45

起止页码：10589

外文期刊名：JOURNAL OF PHYSICAL CHEMISTRY LETTERS

收录：;EI(收录号：20224713144926);WOS:【SCI-EXPANDED(收录号:WOS:000884430000001)】；

基金：This work was supported by the National Natural Science Foundation of China (Nos. 21925201, 22272050, 22161160319, 22002044, and 21978049) , the Shanghai Municipal Science and Technology Qi Ming Xing Project (No. 22QA1403000) , Natural Science Foundation of Shanghai (20ZR1414200) , the Program for Easter n Scholar Distinguished Professor, and the Fundamental Research Funds for the Central Universities. We thank the Research Center of Analysis and Testing of East China University of Science and Technology for help in the characterization.

语种：英文

外文关键词：Chains - Crosslinking - Dendrimers

摘要：Dendronized polymers (DPs) consist of a linear polymeric backbone with dendritic side chains. Fine-tuning of the functional groups in the side chains enriches the structural versatility of the DPs and imparts a variety of novel physical properties. Herein, the first on-surface synthesis of DPs is achieved via the postfunctionalization of polymers on Au(111), in which the surface-confinement-induced planar conformation and chiral configurations were unambiguously characterized. While the dendronized monomer was synthesized in situ on Au(111), the subsequent polymerization afforded only short, cross-linked DP chains owing to multiple side reactions. The postfunctionalization approach selectively produced brominated polyphenylene backbone moieties by the deiodination polymerization of 4-bromo-4 ''- iodo-5 '-(4-iodophenyl)-1,1 ':3 ',1 ''-terphenyl on Au(111), which smoothly underwent divergent cross-coupling reactions with two different isocyanides to form two types of DPs as individual long chains.