Kim, Hyoung-Juhn published their research in Korean Membrane Journal on December 31 ,2003. The article was titled 《Sulfonated dendrimers for the application of fuel cell membranes 1. Synthesis and characterization of sulfonated dendrimers》.COA of Formula: C24H12Br6 The article contains the following contents:
1,3,5-Substituted polyphenylene type dendrimers were synthesized. The dendrimer was heated in concentrate H2SO4 at 120°C. The reaction mixture was precipitated to ether after simple filtration to get para-sulfonated dendrimer as the chief product. To give mech. properties to the sulfonated dendrimer, it was partially cross-linked with Ph ether in the medium of P2O5 and CH3SO3H. After reading the article, we found that the author used 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8COA of Formula: C24H12Br6)
3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8) belongs to organobromine compounds.Organobromine chemicals are produced naturally by an array of biological and other chemical processes in our environment. Some of these compounds are identical to man-made organobromine compounds, such as methyl bromide, bromoform, and bromophenols, but many others are entirely new moleclar entities, often possessing extraordinary and important biological properties. COA of Formula: C24H12Br6
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary