Organic monomer of COF

Covalent organic frameworks (COFs) are a class of organic porous polymers with periodicity and crystallinity, which are connected by light elements through a covalent bond. COFs have incomparable advantages over other traditional porous materials such as molecular sieves, porous polymers and MOFs, such as high specific surface area, low density, high thermal stability and inherent porosity. Therefore, COFs materials have been widely studied and shown great application potential in the fields of gas storage and separation, heterogeneous catalysis, energy storage materials, optoelectronics, sensing and drug delivery. COF organic monomers mainly by the following categories: aldehyde COF monomer, amino COF monomer, alkynyl COF monomer, cyano COF monomer, triptycene series, multi-functional group COF monomer and other COF monomers.