文献类型：期刊文献

英文题名：Controlled Step-Growth Polymerization

作者：Wu, Yusen[1];Ding, Mingming[2];Wang, Jie[1];Zhao, Bing[1];Wu, Ziqi[1];Zhao, Peng[1];Tian, Donglai[1];Ding, Yun[1];Hu, Aiguo[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

年份：2020

卷号：2

期号：2

起止页码：64

外文期刊名：CCS CHEMISTRY

收录：WOS:【ESCI(收录号:WOS:000794105100004)】；

基金：The authors are gratefully appreciative of the financial support from the National Natural Science Foundation of China (grant no. 21674035 and 21604086). A.H. thanks the "Eastern Scholar Professorship" support from the Shanghai local government.

语种：英文

外文关键词：step-growth polymerization; reaction kinetics; conjugated polymer; computational chemistry; nanopore

摘要：Conjugated polymers are attractive components of modern plastic electronics and photovoltaic devices. They are synthesized mainly through a step-growth polymerization (SGP) mechanism. However, due to the uncontrollable characteristic of classical SGP, this effort leads to batch-to-batch variations in solubility, uncontrolled molecular weight, and broad polydispersity of the polymers obtained, thus, severely limiting their processing properties and performance. Here we demonstrate a general theoretical model of controlled SGP process by examining the possibility of the polymer chains further involvement in the SGP and how this correlated with their respective molecular weights. Subsequently, we proposed a practical method by which the SGP system was confined in nano-sized reactors. This method enabled the synthesis of a variety of polymers, having precisely controlled molecular weights with narrow polydispersity. We anticipate that this venture would exemplify a starting point for a more sophisticated molecular and structural design of functional polymers in widespread applications.