%0 Journal Article %1 Zeng2022 %A Zeng, Yuwen %A Gordiichuk, Pavlo %A Ichihara, Takeo %A Zhang, Ge %A Sandoz-Rosado, Emil %A Wetzel, Eric D. %A Tresback, Jason %A Yang, Jing %A Kozawa, Daichi %A Yang, Zhongyue %A Kuehne, Matthias %A Quien, Michelle %A Yuan, Zhe %A Gong, Xun %A He, Guangwei %A Lundberg, Daniel James %A Liu, Pingwei %A Liu, Albert Tianxiang %A Yang, Jing Fan %A Kulik, Heather J. %A Strano, Michael S. %D 2022 %J Nature %K 2022 %N 7895 %P 91--95 %R 10.1038/s41586-021-04296-3 %T Irreversible synthesis of an ultrastrong two-dimensional polymeric material %U https://doi.org/10.1038/s41586-021-04296-3 %V 602 %X Polymers that extend covalently in two dimensions have attracted recent attention1,2 as a means of combining the mechanical strength and in-plane energy conduction of conventional two-dimensional (2D) materials3,4 with the low densities, synthetic processability and organic composition of their one-dimensional counterparts. Efforts so far have proven successful in forms that do not allow full realization of these properties, such as polymerization at flat interfaces5,6 or fixation of monomers in immobilized lattices7--9. Another frequently employed synthetic approach is to introduce microscopic reversibility, at the cost of bond stability, to achieve 2D crystals after extensive error correction10,11. Here we demonstrate a homogenous 2D irreversible polycondensation that results in a covalently bonded 2D polymeric material that is chemically stable and highly processable. Further processing yields highly oriented, free-standing films that have a 2D elastic modulus and yield strength of 12.7þinspace± 3.8þinspacegigapascals and 488þinspace± 57þinspacemegapascals, respectively. This synthetic route provides opportunities for 2D materials in applications ranging from composite structures to barrier coating materials.

@article{Zeng2022, abstract = {Polymers that extend covalently in two dimensions have attracted recent attention1,2 as a means of combining the mechanical strength and in-plane energy conduction of conventional two-dimensional (2D) materials3,4 with the low densities, synthetic processability and organic composition of their one-dimensional counterparts. Efforts so far have proven successful in forms that do not allow full realization of these properties, such as polymerization at flat interfaces5,6 or fixation of monomers in immobilized lattices7--9. Another frequently employed synthetic approach is to introduce microscopic reversibility, at the cost of bond stability, to achieve 2D crystals after extensive error correction10,11. Here we demonstrate a homogenous 2D irreversible polycondensation that results in a covalently bonded 2D polymeric material that is chemically stable and highly processable. Further processing yields highly oriented, free-standing films that have a 2D elastic modulus and yield strength of 12.7{\thinspace}{\textpm} 3.8{\thinspace}gigapascals and 488{\thinspace}{\textpm} 57{\thinspace}megapascals, respectively. This synthetic route provides opportunities for 2D materials in applications ranging from composite structures to barrier coating materials.}, added-at = {2024-02-07T20:01:19.000+0100}, author = {Zeng, Yuwen and Gordiichuk, Pavlo and Ichihara, Takeo and Zhang, Ge and Sandoz-Rosado, Emil and Wetzel, Eric D. and Tresback, Jason and Yang, Jing and Kozawa, Daichi and Yang, Zhongyue and Kuehne, Matthias and Quien, Michelle and Yuan, Zhe and Gong, Xun and He, Guangwei and Lundberg, Daniel James and Liu, Pingwei and Liu, Albert Tianxiang and Yang, Jing Fan and Kulik, Heather J. and Strano, Michael S.}, biburl = {https://www.bibsonomy.org/bibtex/2cd33ce3202192f8346aeef776b48f547/cryoem_staff}, day = 01, doi = {10.1038/s41586-021-04296-3}, interhash = {9d603e7e7020a389a973a0a99feef500}, intrahash = {cd33ce3202192f8346aeef776b48f547}, issn = {1476-4687}, journal = {Nature}, keywords = {2022}, month = feb, number = 7895, pages = {91--95}, timestamp = {2024-02-07T20:01:19.000+0100}, title = {Irreversible synthesis of an ultrastrong two-dimensional polymeric material}, url = {https://doi.org/10.1038/s41586-021-04296-3}, volume = 602, year = 2022 }