Application Of Porous Organic Polymer In CO₂ Adsorption And Curing Direction

As a new material,porous organic polymer has developed rapidly in recent years.With its excellent chemical and thermal stability,simple synthesis process and easy functionalization,it is widely used in gas adsorption,catalysis,sensor and semiconductor fields.Two series of polymers with triazine ring and porphyrin as matrix were prepared by means of hypercrosslinking polymerization.The chemical structure was proved by infrared method,and the pore structure was characterized by gas adsorption instrument.Finally,the adsorption and catalytic performance of CO₂ were investigated.?1?Triazine cyclomonomer was prepared from p-phenylene-dinitrile,m-phenylene-dinitrile and biphenylene-dinitrile as monomers,and quaternary amination of p-dimethylaminobenzaldehyde and bromoheptane was carried out to obtain pantonic monomer containing quaternary ammonium salt,anion pair and anion pair.Its channel structure for multilevel pore structure,specific surface area?BET?model of up to 346 m²/g,under the condition of 298 K,1 bar,the CO₂ adsorption capacity up to 3.03 wt%,and have good catalytic performance on CO₂ cycloaddition,48 h in helpless,catalyst,reaction time,reaction temperature 80?,the concentration of CO₂,under the condition of 0.3 MPa,the reaction conversion and selectivity to achieve 99%above,in addition,the recycling after five times,still shows excellent catalytic performance and at the same time,the different epoxy alkane?epoxy chloropropane,styrene oxide?also has good catalytic performance.?2?Two kinds of porous organic polymers containing carboxyl and quaternary ammonium ion pairs were synthesized by hypercrosslinking with 1,4-dimethoxybenzene as the crosslinking agent.The specific surface area?BET model?was 302m²g^-1?PPOP-I?and 514m²g^-1?PPOP-COOH?,respectively.Under the conditions of 298K and 1bar,the maximum CO₂adsorption capacity is 34.6cm³g^-1.PPOP-I,as a single component catalyst,has a poor catalytic effect.Although it has a good CO₂ adsorption performance,it lacks nucleophile and only relies on the coordination metal ions to catalyze the cycloaddition reaction of CO₂.The catalytic effect is poor.PPOP-I as a single component catalyst has a good catalytic performance,in the reaction time of 24h,reaction temperature of 80?,CO₂ concentration of 0.3MPa to achieve the best catalytic effect?reaction conversion and selectivity are>99%?,and has a good recycling ability and applicability.