I found the field of Materials Science; Polymer Science very interesting. Saw the article Effect of Purification Solvent on Polymer Impurities and Device Performance published in 2019. Application In Synthesis of 4,4′-Dibromobiphenyl, Reprint Addresses Kuwabara, J; Kanbara, T (corresponding author), Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba Res Ctr Energy Mat Sci TREMS, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058573, Japan.. The CAS is 92-86-4. Through research, I have a further understanding and discovery of 4,4′-Dibromobiphenyl
Poly(arylamine)s were synthesized by poly-condensation of 4-n-octylaniline with 4,4′-dibromobiphenyl using the Buchwald-Hartwig aryl amination. Both the NH and the Br end groups were properly modified upon addition of an end-capping reagent in an appropriate ratio. The synthesized polymers contained many impurities, such as Pd, Br, and Cl, which decrease organic light-emitting diode performance. An investigation to reduce the impurities in the polymer showed that the purification solvent plays the key role in reducing the concentration of impurities in the polymer; purification with a nonchlorinated solvent, anisole, provided a highly pure poly(arylamine) even with a simple purification procedure. Moreover, the highly purified polymer material improved carrier mobility in hole-only devices.
About 4,4′-Dibromobiphenyl, If you have any questions, you can contact Kodama, S; Kuwabara, J; Jiang, X; Fukushima, I; Kanbara, T or concate me.. Application In Synthesis of 4,4′-Dibromobiphenyl
Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem