Controllably Growing Topologies in One-shot RAFT Polymerization via Macro-latent Monomer Strategy  

作　　者：Liu-Qiao Zhang Yang Gao Zhi-Hao Huang Wei Zhang Nian-Chen Zhou Zheng-Biao Zhang Xiu-Lin Zhu 

机构地区：[1]State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials,Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China [2]Global Institute of Software Technology,Suzhou 215163,China

出　　处：《Chinese Journal of Polymer Science》2021年第1期60-69,I0006,共11页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.21925107 and 21674072);the Collaborative Innovation Center of Suzhou Nano Science and Technology;the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD);the Program of Innovative Research Team of Soochow University。

摘　　要：The controlled and efficient synthesis of polymers with tailored topologies is challenging but important for exploring structure/property research. Herein, we proposed a concept of macro-latent monomer to achieve the controlled growth of polymer topologies.The macro-latent monomer was installed by a dynamic furan/maleimide covalent bond at the chain terminal. One-shot reversible additionfragmentation chain transfer(RAFT) polymerization of styrene and the macro-latent monomer created controlled growth of polymer topologies.Low temperature such as 40 ℃ could not activate the macro-latent monomer and thus the polymerization created the homo-polystyrene. By contrast, high temperature of ~110 ℃ activated the macro-latent monomer, and a maleimide-terminated macro-monomer was released via the retro-Diels Alder reaction. This macro-monomer immediately joined the cross polymerization with styrene and thus produced the side chains. By delicately manipulating the polymerization temperature, the predetermined placement of the macro-latent monomer-derived polymeric sidechains created controllably growing topologies, including star-, π-shaped, and density-variable grafting copolymers. This work paved a new way for creating on-demand topologies and would greatly enrich the topology synthesis.

关 键 词：Latent monomer Diels-Alder reaction MALEIMIDE STYRENE TOPOLOGIES 

分 类 号：TQ317[化学工程—高聚物工业]