Abstract: The present invention discloses a benzocarbazole-intercalated layered double hydroxides (LDHs) composite luminescent material and its preparation method. The detailed procedure comprises preparing divalent and trivalent metal cation solution A and glycol solution B of sodium 2-hydroxy benzo[a]carbazole-3-carboxylate, mixing the solutions A and B to obtain solution C, slowly adding the prepared NaOH solution dropwise into the solution C, regulating pH of the resultant after dropwise addition to obtain slurry D, allowing the slurry D to react under water bath or microwave temperature-controlled heating condition, centrifuging and washing the obtained product, and drying in vacuum to obtain 2-hydroxy benzo[a]carbazole-3-carboxylate anion intercalated LDHs composite material.

Abstract: A preparation method of composite blue luminescent thin film of sulfonated poly(p-phenylene) (i.e. poly[2,5-bis(3-sulfonatopropoxy)-1,4-phenylene-alt-1,4-phenylene]) and LDHs (Layered Double Hydroxides) is disclosed. The preparation method comprises the following steps: preparing delaminated LDHs colloidal solution using formamide solvent, preparing sulfonated poly(p-phenylene) aqueous solution, and performing alternate assembling on hydrophilically treated substrate in the two solutions to give the composite thin film of sulfonated poly(p-phenylene)/LDHs multilayer. The preparation method has the advantages of simple preparation process, and film thickness controllable at nanoscale precision, in addition, this method also achieves the immobilization of luminescent polymer via restricted space among LDHs layers and host-guest interaction, effectively improves thermal stability, and reduces fluorescence quenching caused by aggregation.

Abstract: The present invention provide a preparation method of composite blue luminescent thin film of sulfonated poly(p-phenylene) (i.e. poly[2,5-bis(3-sulfonatopropoxy)-1,4-phenylene-alt-1,4-phenylene]) and LDHs (Layered Double Hydroxides). The preparation method comprises following steps: preparing delaminated LDHs colloidal solution using formamide solvent, preparing sulfonated poly(p-phenylene) aqueous solution, performing alternate assembling on hydrophilically treated substrate in the two solutions to give the composite thin film of sulfonated poly(p-phenylene)/LDHs multilayer. The present invention has the advantages of simple preparation process, and film thickness controllable at nanoscale precision; the invention also achieves the immobilization of luminescent polymer via restricted space among LDHs layers and host-guest interaction, effectively improves thermal stability, and reduces fluorescence quenching caused by aggregation.

Abstract: The present invention discloses a benzocarbazole-intercalated layered double hydroxides (LDHs) composite luminescent material and its preparation method. The detailed procedure comprises preparing divalent and trivalent metal cation solution A and glycol solution B of sodium 2-hydroxy benzo[a]carbazole-3-carboxylate, mixing the solutions A and B to obtain solution C, slowly adding the prepared NaOH solution dropwise into the solution C, regulating pH of the resultant after dropwise addition to obtain slurry D, allowing the slurry D to react under water bath or microwave temperature-controlled heating condition, centrifuging and washing the obtained product, and drying in vacuum to obtain 2-hydroxy benzo[a]carbazole-3-carboxylate anion intercalated LDHs composite material.