Synthesis and Gas Storage of Porous Poly(phenyl ether)

A poly(phenyl ether), JUC-Z6, with dia-c5 topology was designed and synthesized with cheap reactants tetrakis(4-bromophenyl) methane and hydroquinone via Goldberg modified Ullmann biaryl ether condensation reaction. JUC-Z6 was determined by MAS NMR, FTIR, SEM, TEM and PXRD. The functional structure exhibits not only high thermal stability(214 degrees C) and high chemical stability, but also large surface area(191 m(2)/g), and the pore size is 1.36 nm. Low pressure gas uptake experiments on activated JUC-Z6 show high heat of sorption(Q(st)=4.1 kJ/mol for hydrogen, Q(st)=33.7 kJ/mol for carbon dioxide and Q(st)=4.1 kJ/mol for methane) among porous materials.