Die Angewandte Makromolekulare Chemie · 1997 · 16 citations · 8 references
Natural SciencesChemical EngineeringChemistryChemical KineticsOrganic ChemistryPolymer ChemistryChemical Reaction KineticsPolymer SynthesisPolymerization ChemistryPolymerization KineticsPolymerization ProcessesAqueous-phase ChemistryPolycondensationPolycondensation KineticsPolymer Concentration Effects
Abstract For the synthesis of polyarylate by interfacial polycondensation of bisphenol A with terephthaloyl/isophthaloyl dichloride, the kinetic mechanism was studied through the detection of the concentration of bisphenolate in the aqueous phase by UV spectrometry. The mechanism consists of three steps: 1. the transportation of bisphenolate in the aqueous phase, 2. the transfer of bisphenolate through the interface followed by its transportation in the organic phase, 3. the reaction of bisphenolate with the phthaloylic dichloride in the organic phase. The reaction of bisphenolate with the phthaloylic dichloride in the organic phase is the rate‐determining step. The influence of the concentration in either the aqueous phase or the organic phase and of the quantity of the phase transfer agent on interfacial polycondensation were studied.
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