Development And Absorption Property Of New Polycarbonate-based Polymer Resins

Super oil-absorbable Resin(SOAR),as a kind of new macromolecular polymer materials,can be obtained from various polymerization methods.Especially,besides their much high adsorption of oil-compounds,perfect reusability and good stability are also expected for potential applications on industry,food and environmental protection.This thesis is aimed at developing a new type of polycarbonate-based gel polymeric resins,and further checking their application on organic pollution problem.The specific content is shown as follows:Firstly,PXC-BTBs(PBC-BTB;PPC-BTB;PHC-BTB or PBMC-BTB),the polycarbonate gel polymer resins,were synthesized by a two-step transesterification method for cross-linking polymerization.After characterization by FT-IR,1H NMR and PXRD to confirm their polymeric structure character,swelling experiments to measure their swelling properties,reusability and stability were also carried out.Secondly,for simplifying the operation procedure,OX-BTBs(OB-BTB;OP-BTB;OH-BTB or OBM-BTB),another new polycarbonate gel resins were synthesized by a one-step transesterification method for cross-linking polymerization.And through the characterization by FT-IR and PXRD,the swelling properties,reusability and stability were also studied.Moreover,in order to further improve the swelling property,the optimum process condition was checked for OB-BTB,where the amount of n(BD):n(DMC):n(BTB)is 1:1.5:20,the concentration of alkaline catalyst(CH3ONa)is 15 mol%(based on BTB),the post-reaction-temperature is 190 ? and the post-reaction-time is 18 h.At that condition,the swelling rate was further up to 3060%.Thirdly,PBC-BTBs were carried on oil-water separation,and OH-BTBs were treated for trace contaminants in water.The treatments demonstrate that synthesized polycarbonate-based gel polymeric resins have favorable advantages of fast adsorption,good separation ability and reusability.