Patent ID: 8298618
Filing Date: 2012-10-30
Classification: C09K,H01L,H05B

Abstract:
1. A process for preparing a composite luminescent film of sulfonated poly(p-phenylene) anion/layered double hydroxides (LDHs), comprising: 1) preparing nitrate-intercalated LDHs by a coprecipitation method or an ion-exchange method, wherein the coprecipitation method comprises: 2) stirring, in formaldehyde solvent per 100 mL, 0.05-0.2 g of nitrate intercalated LDHs at 3,000-5,000 rpm for 12-36 hours to delaminate, centrifuging the delaminated LDHs solution and discarding the precipitate to obtain a clear transparent colloidal solution; 3) preparing 0.1-1 g/L sulfonated poly(p-phenylene) solution; 4) subjecting a substrate to hydrophilic treatment, soaking said treated substrate in the colloidal solution for 10-20 min, fully washing with deionized water, then placing the substrate in the sulfonated poly(p-phenylene) solution, and soaking it for 10-20 min, and fully washing with deionized water to obtain a one-cycle composite film of sulfonated poly(p-phenylene)/LDHs; and 5) repeating soaking the substrate in the colloidal solution for 10-20 min, fully washing with deionized water, then placing the substrate in the sulfonated poly(p-phenylene) solution, and soaking it for 10-20 min, and fully washing with deionized water, to obtain a multilayer composite film of sulfonated poly(p-phenylene)/LDHs.