| In this thesis,the synthesis and application of a series of novel triazine-based calix[4]arene porous polymers were studied.The main contents are as follows:In the second chapter,four new triazine-based calix[4]arene porous polymers,CaPOP1,CaPOP2,CaPOP3 and CaPOP4,were synthesized,and their specific surface areas were 280 m2 g-1 and 31.5 m2 g-1,18.4 m2 g-1,1.6 m2 g-1,respectively.Since such porous organic polymers have electron-rich nitrogen atoms,large specific surface areas and pore volumes,and more importantly,high affinity for I2,CaPOPs can be effectively used for iodine capture and storage.The experimental results show that the adsorption capacity of the adsorbent for iodine is not only related to surface area and pore size,but also related to the properties of the material and the effective adsorption sites and the interaction between iodine and the skeleton.Electron-rich CaPOPs have the potential to enhance the adsorption capacity of guest molecules because the solitary electrons of the heteroatoms can enhance the interaction between the adsorbent and the adsorbate.CaPOP1 shows an ultra-high iodine capture amount in aqueous solution,and its absorption amount is as high as 240wt%.The release of iodine can be achieved in ethanol solution,which proves that CaPOPs can be used as an ideal adsorbent for reversible iodine capture to alleviate environmental problems.In the third chapter,a CaPOP3@Pd solid catalyst was synthesized using a triazine-based calix[4]arene porous polymer as a carrier to catalyze the Suzuki-Miyaura reaction.The experimental results show that the catalytic system with CaPOP3@Pd as a catalyst not only has high functional group tolerance but also can obtain the target product in excellent yield.Since the CaPOP3@Pd catalyst is insoluble in any organic solvent and water,the catalyst can be reused at least 5 times without any significant loss of catalytic activity. |
