Tranquilli Marissa M, Rawe Benjamin W, Liu Guancen, Rowan Stuart J
Department of Chemistry, University of Chicago Chicago IL USA
Pritzker School of Molecular Engineering, University of Chicago Chicago IL USA.
Chem Sci. 2023 Feb 15;14(10):2596-2605. doi: 10.1039/d2sc05542b. eCollection 2023 Mar 8.
The main-chain poly[]catenane consists of a series of interlocked rings that resemble a macroscopic chain-link structure. Recently, the synthesis of such intriguing polymers was reported a metallosupramolecular polymer (MSP) template that consists of alternating units of macrocyclic and linear thread-like monomers. Ring closure of the thread components has been shown to yield a mixture of cyclic, linear, and branched poly[]catenanes. Reported herein are studies aimed at accessing new poly[]catenanes this approach and exploring the effect the thread-like monomer structure has on the poly[]catenane synthesis. Specifically, the effect of the size of the aromatic linker and alkenyl chains of the thread-like monomer is investigated. Three new poly[]catenanes (with different ring sizes) were prepared using the MSP approach and the results show that tailoring the structure of the thread-like monomer can allow the selective synthesis of branched poly[]catenanes.
主链聚[ ]索烃由一系列相互连锁的环组成，这些环类似于宏观的链节结构。最近，有报道称通过一种金属超分子聚合物（MSP）模板合成了这种有趣的聚合物，该模板由大环和线性线状单体的交替单元组成。已表明线状组分的环化会产生环状、线性和支化聚[ ]索烃的混合物。本文报道的研究旨在通过这种方法获得新的聚[ ]索烃，并探索线状单体结构对聚[ ]索烃合成的影响。具体而言，研究了线状单体的芳族连接基和烯基链大小的影响。使用MSP方法制备了三种新的聚[ ]索烃（具有不同的环大小），结果表明，定制线状单体的结构可以实现支化聚[ ]索烃的选择性合成。
