863971-07-7

Upstream product

• 51329-15-8 methyl 3,5-dibromobenzoate 
• 618-58-6 3,5-dibromobenzoic acid 
• 23950-59-6 3,5-dibromobenzoyl chloride 
• 610258-34-9 3,5-dibromobenzoic hydrazide 
• 586-75-4 4-chlorobenzoyl chloride 

Relevant academic research and scientific papers

Hyperbranched oxadiazole-containing polyfluorenes: Toward stable blue light PLEDs

The synthesis of hyperbranched oxadiazole-containg polyfluores using 'A2 + A2′ + B3' approach based on Suzuki polycondensation was investigated. The molecular structures of the sample polymer were characterized with high-resolution NMR spectroscopy and elemental analysis. The solubility was found to be poor in organic solvents for hyperbranched polymers with higher contents of 2-(4-bromophenyl)-5-(3,5-dibromophenyl)-1,3,4-oxadiazole monomer. The sample polyfluores showed stable blue light emission even after being annealed in the elevated temperatures in the N2 and air.