作者:Kalipada Koner、Susobhan Das、Shibani Mohata、Nghia Tuan Duong、Yusuke Nishiyama、Sharath Kandambeth、Suvendu Karak、C. Malla Reddy、Rahul Banerjee
DOI:10.1021/jacs.2c06133
日期:2022.9.7
Covalent organic nanotubes (CONTs) are one-dimensional porous frameworks constructed from organic building blocks via dynamic covalent chemistry. CONTs are synthesized as insoluble powder that restricts their potential applications. The judicious selection of 2,2′-bipyridine-5,5′-dicarbaldehyde and tetraaminotriptycene as building blocks for TAT-BPy CONTs has led to constructing flexible yet robust
共价有机纳米管 (CONT) 是通过动态共价化学由有机构件构成的一维多孔框架。CONTs 被合成为不溶性粉末,限制了它们的潜在应用。明智地选择 2,2'-bipyridine-5,5'-dicarbaldehyde 和四氨基三蝶烯作为 TAT-BPy CONTs 的构建单元,导致构建了厚度达 3 μm 的灵活而坚固且自立的织物。TAT-BPy CONTs 和 TAT-BPy CONT 织物已通过固态一维 (1D) 13 C CP-MAS、二维 (2D) 13 C– 1 H 相关 NMR、2D 1 H– 1 H进行了表征DQ–SQ NMR 和 2D 14 N– 1H相关核磁共振光谱。通过使用高分辨率透射电子显微镜和扫描电子显微镜技术,已经建立了织物形成的机制。合成后的粘弹性 TAT-BPy CONT 织物表现出高机械强度,降低的模量 ( Er) 为 8 (±3) GPa,硬度 (H )为0.6