TY - JOUR
T1 - A benzocrown-6-calix[4]arene methacrylate copolymer
T2 - Selective extraction of caesium ions from a multi-component system
AU - Rambo, Brett M.
AU - Kim, Sung Kuk
AU - Kim, Jong Seung
AU - Bielawski, Christopher W.
AU - Sessler, Jonathan L.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - The synthesis and extraction properties of a copolymer comprised of a 10:1 molar ratio of methyl methacrylate (MMA) and a methacrylate functionalized benzocrown-6-calix[4]arene are reported. Under aqueous-dichloromethane liquid-liquid extraction conditions, the copolymer displayed an enhanced selectivity for caesium over sodium and potassium (in the form of their picrate salts) as compared to an appropriate small molecule analogue. Further, the copolymer was capable of removing caesium nitrate from aqueous solution in the presence of various other anionic (e.g., F-, Cl-, and SO4
-) and cationic species (e.g., K+ and Na+). The ability of this polymeric system to extract inorganic caesium salts into dichloromethane from aqueous media scaled with the relative hydration energies (ΔhydG°) of each anion studied (i.e., NO3
- > Br- ≫ Cl- or F -).
AB - The synthesis and extraction properties of a copolymer comprised of a 10:1 molar ratio of methyl methacrylate (MMA) and a methacrylate functionalized benzocrown-6-calix[4]arene are reported. Under aqueous-dichloromethane liquid-liquid extraction conditions, the copolymer displayed an enhanced selectivity for caesium over sodium and potassium (in the form of their picrate salts) as compared to an appropriate small molecule analogue. Further, the copolymer was capable of removing caesium nitrate from aqueous solution in the presence of various other anionic (e.g., F-, Cl-, and SO4
-) and cationic species (e.g., K+ and Na+). The ability of this polymeric system to extract inorganic caesium salts into dichloromethane from aqueous media scaled with the relative hydration energies (ΔhydG°) of each anion studied (i.e., NO3
- > Br- ≫ Cl- or F -).
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U2 - 10.1039/c0sc00396d
DO - 10.1039/c0sc00396d
M3 - Article
AN - SCOPUS:81355135381
VL - 1
SP - 716
EP - 722
JO - Chemical Science
JF - Chemical Science
SN - 2041-6520
IS - 6
ER -