期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 33, 期 14, 页码 1184-1190出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201100865
关键词
covalent-organic frameworks; covalent-organic polymers; luminescence probe; metal-organic frameworks; nitroaromatic explosives detection; porous conjugated polymers
资金
- Huo Yingdong Foundation [121070]
- National 973 Program [2011CB706900]
- NSF of China [21121064]
- MOE [20100010110001]
- Chemical Grid Program from BUCT
Three porous luminescent covalent--organic polymers (COPs) have been synthesized through self-polycondensation of the monomers of tris(4-bromophenyl)amine, 1,3,5-tris(4-bromophenyl)benzene, and 2,4,6-tris-(4-bromo-phenyl)-[1,3,5]triazine by using Ni-catalyzed Yamamoto reaction. All the COP materials possess not only high BrunauerEmmettTeller (BET) specific surface area of about 2000 m2 g-1, high hydrothermal stability, but also graphene-like layer texture. Interestingly, COP-3 and COP-4 show very fast responses and high sensitivity to the nitroaromatic explosives, and also high selectivity for tracing picric acid (PA) and 2,4,6-trinitrotoluene (TNT) at low concentration (<1 ppm). In short, the COPs may be a new kind of material for detecting explosives and small organic molecules.
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