β-Cyclodextrin-Derived Monolithic, Hierarchically Porous Polyimides Designed for Versatile Molecular Separation Applications was written by Leonhardt, Eric E.;Meador, Mary Ann B.;Wooley, Karen L.. And the article was included in Chemistry of Materials in 2018.Quality Control of Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin This article mentions the following:
This work details the development of a chem. resistant, porous polyimide derived from β-cyclodextrin, pairing the interesting and unique sorption properties of cyclodextrins with the chem. robustness of polyimides to create versatile monolithic, porous frameworks. Cyclodextrin-based materials have achieved great notoriety, recently, for their utility in separation processes, such as in the near-instant removal of organic contaminants from wastewater streams and in the capture of odorous compounds from air, due to the unique ability of the cyclodextrins to reversibly bind guest mols. in their cyclic cavities. Inclusion of cyclodextrins as active host systems within a porous framework is crucial for their accessibility to enhance their performance in separation applications, relative to nonporous materials. However, the current generation of porous materials typically require long reaction times and yield insoluble powders that severely limit their use. The technol. presented herein offers a novel, scalable solution to the preparation of porous cyclodextrin-derived materials, and further increases their utility by enabling diverse applications through mold and film casting. Here, the authors demonstrate their rapid synthesis and processing, their inherent hierarchical porosity, their extraordinary chem. stability, and their efficacy as regenerable sorbents with powerful potential for a wide range of separation applications. In the experiment, the researchers used many compounds, for example, Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1Quality Control of Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin).
Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Quality Control of Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary