A Crystalline 1D Dynamic Covalent Polymer

The synthesis of crystalline one-dimensional polymers provides a fundamental understanding about the structure??? property relationship in polymeric materials and allows the preparation of materials with enhanced thermal, mechanical, and conducting properties. However, the synthesis of crystalline one-dimensional polymers remains a challenge because polymers tend to adopt amorphous or semicrystalline phases. Herein, we report the synthesis of a crystalline one-dimensional polymer in solution by dynamic covalent chemistry. The structure of the polymer has been unambiguously confirmed by microcrystal electron diffraction that together with charge transport studies and theoretical calculations show how the ir-stacked chains of the polymer generate optimal channels for charge transport. This work was carried out with support from the Basque Science Foundation for Science (Ikerbasque) , POLYMAT, the University of the Basque Country, Diputaci?n de Guipu ? zcoa, Gobierno Vasco (PIBA_2022_1_0031 and BERC program) , Generalitat Valenciana (PROMETEU/2021/054) and Go- bierno de Espan ? a (Projects CEX2020-001067-M, PID2021- 124484OB-I00,PID2020-118117RB-I00 and CEX2019- 0 0 0 9 1 9-M financed by MCIN/AEI/10.13039/501100011033) . Project (PCI2022-132921) funded by the Agencia Estatal de Investigaci?n through the PCI 2022 and M- ERA.NET 2021 calls. Technical and human support provided by SGIker of UPV/EHU and European funding (ERDF and ESF) is acknowledged. This project has received funding from the European Research Council (ERC) under the European Union?s Horizon 2020 research and innovation program (Grant Agreement No. 722951 and 714122) . This project has received funding from the European Union?s Horizon 2020 research and innovation program under grant agreement No. 899895. This work was funded by the ? uropean Union under the Horizon Europe grant 101046231. This project has received support from the National Institutes of Health (R21GM135784) and the use of the Titan Krios within the Eyring Materials Center at Arizona State University (NSF DBI 1531991) . Support through project IF/00894/2015 and within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020, financed by national funds through the FCT/MEC (PID- DAC) , is gratefully acknowledged. We thank the Nanoscale and Microscale Research Centre (nmRC) , University of Nottingham, for access to EM instrumentation. N.M.P. thanks La Caixa Foundation for a Postdoctoral Junior Leader - Retaining Fellowship (ID 100010434 and fellowship code LCF/BQ/PR20/11770014) .