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Heterogeneous phase-transfer catalysts: onium salts, crown ethers, and cryptands immobilized on polymer supports
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1976
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EngineeringPolymer MatrixChemistryCrown EthersChemical EngineeringTypical Phase-transfer CatalystsHomogeneous CatalysisHybrid MaterialsPolymer ChemistryMaterials ScienceOnium SaltsCatalyst RecyclingPolymer SupportsCatalysisCatalytic SynthesisHeterogeneous Phase-transfer CatalystsPolymer ScienceHeterogeneous CatalysisPolymer Synthesis
Typical phase-transfer catalysts, namely organophilic onium salts, crown ethers, and cryptands, when immobilized on a polymer matrix retain most of their catalytic activity, thus permitting catalyst recycling by simple filtration from the reaction medium.