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Statements

Subject Item
n2:RIV%2F60162694%3AG44__%2F10%3A00002337%21RIV11-MO0-G44_____
rdf:type
n7:Vysledek skos:Concept
dcterms:description
Nucleophilic reactivity of some functionalized surfactants, i.e. quaternary pyridinium aldoximes towards the hydrolysis of p-nitrophenyl acetate (PNPA), p-nitrophenyl benzoate (PNPB), p-nitrophenyldiphenyl phosphate (PNPDPP) and p-nitrophenyl p-toluene sulphonate (PNPTS) has been studied at pH 7.1 and 27 -C. Addition of functionalized surfactant to reaction medium causes progressive increase in the rate of hydrolysis and reaches a maximum and then decreases due to further addition of surfactant. An increase in the alkyl chain length of functionalized surfactants resulted in an increase in the first-order rate constant. The apparent pKa and cmc of functionalized surfactants have also been determined by spectrophotometric and conductometric methods, respectively. Nucleophilic reactivity of some functionalized surfactants, i.e. quaternary pyridinium aldoximes towards the hydrolysis of p-nitrophenyl acetate (PNPA), p-nitrophenyl benzoate (PNPB), p-nitrophenyldiphenyl phosphate (PNPDPP) and p-nitrophenyl p-toluene sulphonate (PNPTS) has been studied at pH 7.1 and 27 -C. Addition of functionalized surfactant to reaction medium causes progressive increase in the rate of hydrolysis and reaches a maximum and then decreases due to further addition of surfactant. An increase in the alkyl chain length of functionalized surfactants resulted in an increase in the first-order rate constant. The apparent pKa and cmc of functionalized surfactants have also been determined by spectrophotometric and conductometric methods, respectively.
dcterms:title
Functionalized surfactant mediated reactions of carboxylate, phosphate and sulphonate esters Functionalized surfactant mediated reactions of carboxylate, phosphate and sulphonate esters
skos:prefLabel
Functionalized surfactant mediated reactions of carboxylate, phosphate and sulphonate esters Functionalized surfactant mediated reactions of carboxylate, phosphate and sulphonate esters
skos:notation
RIV/60162694:G44__/10:00002337!RIV11-MO0-G44_____
n4:aktivita
n10:P
n4:aktivity
P(OVUOFVZ200803)
n4:cisloPeriodika
6
n4:dodaniDat
n16:2011
n4:domaciTvurceVysledku
n14:9644830 n14:6306888
n4:druhVysledku
n13:J
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
259947
n4:idVysledku
RIV/60162694:G44__/10:00002337
n4:jazykVysledku
n18:eng
n4:klicovaSlova
functionalized surfactants; kinetics; micelles; pyridinium aldoximes
n4:klicoveSlovo
n5:micelles n5:pyridinium%20aldoximes n5:functionalized%20surfactants n5:kinetics
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[2BD36D7069B7]
n4:nazevZdroje
Journal of Physical Organic Chemistry
n4:obor
n9:FP
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
4
n4:projekt
n12:OVUOFVZ200803
n4:rokUplatneniVysledku
n16:2010
n4:svazekPeriodika
23
n4:tvurceVysledku
Kuča, Kamil Marek, Jan Ghosh, KK Tiwari, S.
n4:wos
000278636900007
s:issn
0894-3230
s:numberOfPages
7
n11:organizacniJednotka
G44