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In chemistry, a phase-transfer catalyst or PTC is a catalyst that facilitates the transition of a reactant from one phase into another phase where reaction occurs. Phase-transfer catalysis is a special form of catalysis and can act through homogeneous catalysis or heterogeneous catalysis methods depending on the catalyst used. Ionic reactants are often…
Types, Overview & Phase-boundary catalysis
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phase catalyst organic phase-transfer aqueous transfer catalysis catalysts ptc salts pbc used reaction agents hydrophobic phases often also quaternary phosphonium
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| tetra-n-butylammonium bromide | instance of | from the aqueous phase into the organic phase.Subsequent work demonstrated that many such reactions can be performed rapidly at around room temperature using catalysts | 0.80 | text |
| methyltrioctylammonium chloride in benzene/water systems | instance of | from the aqueous phase into the organic phase.Subsequent work demonstrated that many such reactions can be performed rapidly at around room temperature using catalysts | 0.80 | text |
| PBC is needed due to the immiscibility of aqueous phases with most organic substrate | instance of | an approach | 0.80 | text |
| water | instance of | between immiscible media | 0.80 | text |
| organic solvents | instance of | between immiscible media | 0.80 | text |
| electrospinning | instance of | They are especially relevant in materials science contexts | 0.80 | text |
| thin-film fabrication | instance of | They are especially relevant in materials science contexts | 0.80 | text |
| and surface functionalisation | instance of | They are especially relevant in materials science contexts | 0.80 | text |
| where precise control over dispersion | instance of | They are especially relevant in materials science contexts | 0.80 | text |
| compatibility between components is essential | instance of | They are especially relevant in materials science contexts | 0.80 | text |
| Phase-transfer catalyst | related to Phase transfer agents (PTAs) | Not | 0.60 | section |
| Phase-transfer catalyst | related to Phase transfer agents (PTAs) | PTCs | 0.60 | section |
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