Synthesis of fluorinated oxadiazoles with gelation and oxygen storage ability

Synthesis of fluorinated oxadiazoles with gelation and oxygen storage ability

A new family of fluorinated low molecular weight (LMW) gelators has been synthesized through SNAr substitution of 5-polyfluoroaryl-3-perfluoroheptyl-1,2,4-oxadiazoles with glycine ester. The obtained compounds give thermal and pH-sensitive hydrogels or thermo-reversible organogels in DMSO. Oxygen so...

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Veröffentlicht in:Organic & biomolecular chemistry 2012-04, Vol.10 (15), p.3044-3052
Hauptverfasser: Palumbo Piccionello, Antonio, Guarcello, Annalisa, Calabrese, Alessandro, Pibiri, Ivana, Pace, Andrea, Buscemi, Silvestre
Format: Artikel
Sprache:eng
Schlagworte:
Dimethyl Sulfoxide - chemistry
Esters - chemistry
Fluorine
Gels
Glycine - chemistry
Halogenation
Hydrogen Bonding
Hydrogen-Ion Concentration
Microscopy, Electron, Scanning
Molecular Weight
Oxadiazoles - chemical synthesis
Oxygen - chemistry
Phase Transition
Solubility
Thermodynamics
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Zusammenfassung:A new family of fluorinated low molecular weight (LMW) gelators has been synthesized through SNAr substitution of 5-polyfluoroaryl-3-perfluoroheptyl-1,2,4-oxadiazoles with glycine ester. The obtained compounds give thermal and pH-sensitive hydrogels or thermo-reversible organogels in DMSO. Oxygen solubility studies showed the ability to maintain high oxygen levels in solution and in gel blend with plate counter agar (PCA).
ISSN:1477-0520
1477-0539
DOI:10.1039/c2ob07024c