X-ray contrast polymers of p-styryldi(p-tolyl)bismuth: synthesis and properties

The Bismuth Hydrogen Sulfate [Bi2(SO4)2(dmso)8](HSO4)2

“…The low solubility of such bismuth oxido nitrates hampers their use with regard to potential applications, e.g. as nanoscaled radiopacifiers in bone and dental cements1,7–10 or ingredients of antimicrobial formulations,11–13 respectively. The partial or complete exchange of nitrate against organic ligands often significantly increases the solubility.…”

First synthesis of the bismole‐containing conjugated polymer

“…Future studies on the contribution of the bismuth atom to the conjugated main chain are required. In addition, application to the X‐ray contrast materials36, 37 as well as the reactive polymers by making use of the reactivity of organobismuth compounds are now under investigation.…”

“…The synthesis of bismuth‐containing heterocyclopentadiene derivatives, bismole, has been realized29–35; however, the construction of conjugated polymers containing the bismole skeleton in the main chain is not known. In addition, a limited number of studies on the synthesis of bismuth‐containing polymers have been reported to date 36–38. In light of these viewpoints, incorporation of the organobismuth compounds in the conjugated polymer chain is an attractive approach towards the construction of novel conjugated systems.…”

“…In addition, a limited number of studies on the synthesis of bismuthcontaining polymers have been reported to date. [36][37][38] In light of these viewpoints, incorporation of the organobismuth compounds in the conjugated polymer chain is an attractive approach towards the construction of novel conjugated systems. In this study, we have focused attention on bismole as the organobismuth compound and have summarized the synthetic procedure of a conjugated polymer containing a bismole unit in the main chain by a polymer reaction.…”

Radiopaque Polymers

“…Copolymerization with styrene, methyl acrylate, or MMA yields homogeneous radiopaque and moisture-stable materials (37). The monomer styryl di(p-tolyl)bismuth can be obtained as a pure crystalline solid and homopolymerized with cross-linking (38). In addition to organobismuth monomers, styryl tin and lead monomers have also been reported but their higher toxicity, even in polymer form, makes them less attractive as radiopacifiers (39).…”