Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Znaleziono wyników: 16
first rewind previous Strona / 1 next fast forward last
help Sortuj według:

help Ogranicz wyniki do:
1
100%
Przemysł Chemiczny
2013 T. 92, nr 9 1577-1581
2
100%
Przemysł Chemiczny
2001 T. 80, nr 4 139-144
3
100%
Polish Journal of Chemistry
1998 Vol. 72, nr 7 1131-1147
EN Reactivity of organic peroxy compounds, specially dialkyl peroxides is described. The knowlodge of chemical properties and reactivity of these substances is essential for the understanding of many practical aspects, e.g. the processes of ageing and explosion, waste management and biochemical process[...]
4
100%
Polish Journal of Chemistry
1998 Vol. 72, nr 9 2151-2158
EN The homogeneous decomposition of various asymmetric dialkyl peroxides ROOR' (R=C6H5(CH3)2; R'=Et, Pr, Bu, Bu(i), Bu(s), Bu(t), n-heptyl, n-dodecyl and allyl) is examined by the measurement of autooxidation of isopropylbenzene in the presence of peroxides as initiators. Rate constants and activation [...]
5
100%
Polish Journal of Chemical Technology
EN The first-order decomposition rates of asymmetric cumyl propyl peroxide (CPP) in various solvents have been investigated. The differences in rates are discussed in terms of the polar character of reaction transition state. The ratio of reaction products derived from cumyloxyl radical PhC(Me)2O* (1-p[...]
6
100%
Polish Journal of Chemistry
1999 vol. 73 nr 7 1185-1189
EN The acylation of alkyl hydroperoxydes with acid chlorides under the phase transfer conditions (PTC) is studied. An evident catalytic effect was observed. This reaction can be considered as a convenient method for the synthesis of organic peresters.
7
100%
Prace Naukowe Politechniki Szczecińskiej. Instytut Technologii Nieorganicznej
1998 Nr 547 279-281
PL W ostatnich latach problemy ochrony środowiska odgrywają kluczową rolę przy projektowaniu technologii wielkotonażowych. Mniejszą uwagę zwraca się na te zagadnienia w przypadku małych produkcji zapominając, że właśnie w tych przypadkach stosunek substancji odpadowych do pożądanego produktu jest nieje[...]
EN The present work deals with the synthesis method of peroxides from sodium and potassium organic peroxides and alkil or acyl halides a two-phase solid/organic solvent system by phase transfer catalysis. The effect of various parameters including temperature, structure of the reagents, catalysts and r[...]
8
100%
Wiadomości Chemiczne
2000 [Z] 54, 11-12 1023-1061
EN Organic peroxides are an interesting group of organic compounds. The O-O bonds in their structure warrant their properties determining the range of their application. The chemistry of peroxy substances is a branch of knowledge which is continuously developing. In the course of recent years much prog[...]
9
100%
Polish Journal of Applied Chemistry
EN The paper shows the results of the study on application of aqueous Na2CO3 solution for the reaction of alkyl hydroperoxides with acid chlorides in the presence of phase transfer (PT) catalysts. Observed reaction rate constants were determined. The effect of stirring speed, Na2CO3 amount, acid chlori[...]
10
80%
Polish Journal of Chemistry
EN This work presents the results of oxygen solubility in ionic liquids based on 1-alkyl-3-methylimidazolium cations. Solubility measurements have been carried out in gasometric apparatus at 22, 50 and 90graduate C under atmospheric pressure. We report the Henry's constants. In general the occurrence o[...]
11
80%
Przemysł Chemiczny
2005 T. 84, nr 6 384-386
12
80%
Polish Journal of Chemical Technology
EN A synthesis method of peroxyesters from alkyl hydroperoxides and acid chlorides catalyzed by polymer-supported phase transfer catalysts was introduced. This method makes it possible for the catalyst to be easily separated from the reaction product and be used in the continuous process.
13
80%
Polish Journal of Chemistry
EN The synthesis of mixed organic peroxides by reaction of alkyl halides with tertiary hydroperoxides under basic phase-transfer catalysis conditions was described.
14
80%
Chemik
PL W niniejszej pracy opracowano nową efektywną syntezę nadtlenoestrów organicznych w wyniku reakcji aclylowania wodoronadtlenków alkilowych wobec 30% roztworu wodnego NaOH lub pirydyny w środowisku wybranych cieczy jonowych.
EN A new convenient and effective method of synthesis of organic peroxyesters has been developed, which involves acylation of hydroperoxides in the presence of NaOH (30% water solution) or pyridyne in room temperature ionic liquids as a novel media.
15
80%
Przemysł Chemiczny
2013 T. 92, nr 4 563-567
16
71%
Przemysł Chemiczny
2011 T. 90, nr 12 2202-2206
first rewind previous Strona / 1 next fast forward last