铁配合物催化的近红外光诱导阳离子及自由基RAFT聚合反应
Near-Infrared, Light-Induced Cationic and Radical RAFT Polymerization Catalyzed by Iron Complex.
作者信息
Li Jiajia, Chen Miao, Lin Xia, Li Qilong, Zhang Wei, Jin Guoqing, Pan Xiangqiang, Zhu Jian, Zhu Xiulin
机构信息
State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
School of Mechanical and Electric Engineering, Soochow University, Suzhou 215006, China.
出版信息
ACS Macro Lett. 2020 Dec 15;9(12):1799-1805. doi: 10.1021/acsmacrolett.0c00794. Epub 2020 Nov 25.
A near-infrared (NIR) light induced controlled cationic polymerization is presented here. The halide abstraction reaction between the cyclopentadienyl iron dicarbonyl dimer (Fe(Cp)(CO)) and an organic halide is utilized to generate initial radicals or cations under mild conditions, which can be further combined with both radical and cationic reversible addition-fragmentation chain transfer (RAFT) polymerization. Well-defined poly(vinyl ether)s and polyacrylates are prepared successfully under NIR light by this method. The excellent penetration ability of NIR light through thick barriers has been verified by polymerization in the presence of an A4 paper. In addition, iron-based radical polymerization has been used for three-dimensional (3D) printing to fabricate materials with different thicknesses.
本文介绍了一种近红外（NIR）光诱导的可控阳离子聚合反应。利用环戊二烯基二羰基铁二聚体（Fe(Cp)(CO)₂）与有机卤化物之间的卤化物夺取反应，在温和条件下产生初始自由基或阳离子，这些自由基或阳离子可进一步与自由基和阳离子可逆加成-断裂链转移（RAFT）聚合反应相结合。通过该方法在近红外光下成功制备了结构明确的聚乙烯醚和聚丙烯酸酯。近红外光通过厚屏障的优异穿透能力已通过在A4纸存在下的聚合反应得到验证。此外，铁基自由基聚合已用于三维（3D）打印，以制造具有不同厚度的材料。
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