MgAl type layered double hydroxide(LDH) obtained by co-precipitation,has been used as precursors to intercalate an antineoplastic agent fluorouracil to prepare an intercalation compound LDH-FLU with ion exchange react...MgAl type layered double hydroxide(LDH) obtained by co-precipitation,has been used as precursors to intercalate an antineoplastic agent fluorouracil to prepare an intercalation compound LDH-FLU with ion exchange reaction.The transformation in structure and crystalline state property from LDH to LDH-FLU has been investigated via XRD,FT-IR,TEM,TG-DSC,and BET-N2 surface area characterizations.The results show that the structure of the intercalation compound is homologous to a monolayer parallel pillar-layer interaction model.Compared with LDH,the crystallinity of this compound is enhanced,the proportion of the inter-lamellar constitution H2O is increased,the thermal decomposition of intermediate crystalline phase complicated,the stack order of grains intensified in c axial,the absorbability of micro-pore decreased,and the pore volume of inter-laminar are reduced evidently.展开更多
文摘MgAl type layered double hydroxide(LDH) obtained by co-precipitation,has been used as precursors to intercalate an antineoplastic agent fluorouracil to prepare an intercalation compound LDH-FLU with ion exchange reaction.The transformation in structure and crystalline state property from LDH to LDH-FLU has been investigated via XRD,FT-IR,TEM,TG-DSC,and BET-N2 surface area characterizations.The results show that the structure of the intercalation compound is homologous to a monolayer parallel pillar-layer interaction model.Compared with LDH,the crystallinity of this compound is enhanced,the proportion of the inter-lamellar constitution H2O is increased,the thermal decomposition of intermediate crystalline phase complicated,the stack order of grains intensified in c axial,the absorbability of micro-pore decreased,and the pore volume of inter-laminar are reduced evidently.
