The kinetics of polycondensation of ?,??-dichloro-p-xylene with 4,4?-isopropylidenediphenol using benzyltriethylammonium chloride as a phase-transfer catalyst

Park, Sang-Wook; Yoon, Hwajoung; Park, Sang-Bo; Sohn, In-Joe

doi:10.1002/1099-0518(20000901)38:17<3059::aid-pola60>3.0.co;2-2

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…However, the phenomenon of constancy of the reaction rate constant over a certain agitation speed widely exists in PTC reactions, which are formulated based on an extraction model. Wang and Tseng [66], Jayachandran et al [67], Park et al [68], Wang and Wu [69] and Do and Chou [70], proposed the agitation speeds from 200 to 800 rpm. This threshold value changes with changes in the reaction parameters, e.g.…”

Section: S-alkylationmentioning

confidence: 99%

Role of Mass Transfer in Phase Transfer Catalytic Heterogeneous Reaction Systems

Vivekanand¹,

Wang²

2011

Mass Transfer - Advanced Aspects

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Section: S-alkylationmentioning

confidence: 99%

Role of Mass Transfer in Phase Transfer Catalytic Heterogeneous Reaction Systems

Vivekanand¹,

Wang²

2011

Mass Transfer - Advanced Aspects

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Kinetics of the reaction of 4,4′‐biphenol with bromoethane and 1‐bromobutane by phase‐transfer catalysis

Wang

Tseng

2003

Int J of Chemical Kinetics

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The reaction of 4,4 -biphenol and two species of bromoalkanes (e.g., bromoethane and 1-bromobutane) to synthesize two symmetric products (4,4 -diethanoxy biphenyl and 4,4 -dibutanoxy biphenyl) and one asymmetric product (4-ethanoxy, 4 -butanoxy biphenyl) was successfully carried out under two-phase phase-transfer catalysis conditions. A rational mechanism and kinetic model were built up by considering the reactions both in aqueous phase and in organic phase. The first active catalyst (QO(Ph) 2 OQ) was also synthesized under two-phase reaction and was identified by instruments. The experimental data were explained satisfactorily by the pseudo-steady-state hypothesis. Two sets of rate constants of organic reactions, i.e. primary (k 1 and k 2 ) and secondary (k 11 , k 12 , k 21 , and k 22 ) rate constants participate in the kinetic model. The two primary rate constants were obtained individually via experimental data for synthesizing the symmetric products. The ratios of the other four secondary rate constants were obtained from the reaction of synthesizing asymmetric products and determined from the initial yield rates of symmetric products. The effects of the ratio of bromoethane and 1-bromobutane, temperature, organic solvents, amount of catalyst, and amount of sodium hydroxide on the reaction rate and the selectivity of products were investigated in detail. The results were explained satisfactorily by the interaction between the reactants and the environmental species. C

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Hydrolysis of 4-methoxyphenylacetic acid butyl ester under liquid–liquid biphasic phase transfer condition and their kinetics

Wang

Vivekanand

2012

Journal of the Taiwan Institute of Chemical Engineers

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The kinetics of polycondensation of ?,??-dichloro-p-xylene with 4,4?-isopropylidenediphenol using benzyltriethylammonium chloride as a phase-transfer catalyst

Cited by 4 publications

References 14 publications

Role of Mass Transfer in Phase Transfer Catalytic Heterogeneous Reaction Systems

Role of Mass Transfer in Phase Transfer Catalytic Heterogeneous Reaction Systems

Kinetics of the reaction of 4,4′‐biphenol with bromoethane and 1‐bromobutane by phase‐transfer catalysis

Hydrolysis of 4-methoxyphenylacetic acid butyl ester under liquid–liquid biphasic phase transfer condition and their kinetics

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