N-rich porous organic polymer with suitable donor-donor-acceptor functionality for the sensing of nucleic acid bases and CO2 storage application

A new high surface area porous organic polymer PDVTD-1 (poly-divinylbenzene-co-tartardiamide) has been synthesized via radical copolymerization of divinylbenzene and (+)-N, N'-diallyltartardiamide using AIBN initiator under solvothermal conditions. A detailed characterization of this functionalized porous polymer is performed using N-2 sorption, solid state C-13 CP MAS NMR, FT-IR and UV-Vis spectroscopy, HR-TEM, FE-SEM, TGA/DTA and CHN analysis. Photoluminescence study of the material is carried out to investigate the sensing behaviour of PDVTD-1 towards different nucleic acid bases. It is observed that at very low concentration of base (i.e. 10(-6) to 10(-7) M) PDVTD-1 can selectively sense cytosine, whereas in the concentration range 10(-3) to 10(-5) M adenine, thymine and uracil also shows quenching of its fluorescence intensity. Moreover, this N-rich porous polymer PDVTD-1 showed excellent CO2 uptake capacity of 8.76 mmol g(-1) (38.54 wt%) at 273 K and 3 bar pressure with an initial isosteric heat of adsorption (Q(st)) of 72 kJ mol(-1).