Controllable Preparation Of Microporous Polymer Materials And Its Application In Gas Storage

Recently, a new series of microporous has been found widely potentialapplication in gas separation and storage, which is significant for the development ofnew energy, remission of the greenhouse. Therefore, the aim of present thesis was toprepare new microporous polymer networks with controlled the microporousperformance and investigate their application prospect in the gas storage.In Part Ⅰ, a series of conjugated microporous networks (M1-M6) have beensynthesized by Yamamoto coupling of1,3,5-tris(4-bromophenyl)benzene with severallinking monomers. M1exhibited the largest SBETand pore volume(821.3m2g-1and0.82cm3g-1), and consequently excellent absorption capacity of H2and CO2(1.03wt%and6.47wt%). With the increase of of linking monomer length, the microporeperformance and gas adsorption of CMPs was decreased.In Part Ⅱ, a series of conjugated microporous networks (C1-C6) have beensynthesized by Yamamoto coupling of Tetrakis(4-bromophenyl)methane with severallinking monomers. In all networks, the SBETand pore volume of C1is the largest aswell as the absorption of H2and CO2(5600m2g-1,0.82cm3g-1,1.86wt%,150mg/g,respectively). Owning the same length of linking monomer, the CMPs withstereoscopic corn monomer possess more outstanding micropore performance and gasadsorption than those with planer corn monomer.In Part Ⅲ, covalent organic frameworks (COFs) have been synthesized by thecondensation of melamine with two linking monomers. Since a large number C=Nwere equipped into the of COFs, carbondioxide adsorption of COFs achieved12.50wt.%, which were higher than that of2D COFs. The gas adsorption of networks is relatedto both SBETand building structure.In Part Ⅳ, ferrocenyl covalent microporous frameworks (FCOFs) have beensynthesized by the condensation of melamine or tetra(ρ-aminophenyl)methane with1,1’-ferrocene-dicarboxaldehyde. The character and application in the gas storagewere then studied.2D FCOFs were prepared with outstanding SBETand pore volume(752m2g-1and1.32cm3g-1, respectively). Meanwhile, the absorption of H2and CO2achieved1.86wt%,150mg/g, respectively, which are all more excellent than almost2D COFs. The introduction of ferrocene enhanced significantly the gas adsorption ofFCOFs.