Kinetics and mechanism of the initial stage of esterification of diethylene glycol with phthalic anhydride

1969 ◽  
Vol 11 (8) ◽  
pp. 2088-2095
Author(s):  
M.I. Vinnik ◽  
T.Ya. Kefell ◽  
Yu.M. Filippovskaya ◽  
A.A. Berlin
Keyword(s):  
Phthalic Anhydride ◽  
Diethylene Glycol ◽  
Kinetics And Mechanism ◽  
Initial Stage

scholarly journals Kinetics and mechanism of cetyltrimethylammonium bromide catalyzed oxidation of diethylene glycol by chloramine-T in acidic medium

2003 ◽  
Vol 68 (7) ◽  
pp. 535-542 ◽  
Author(s):  
V.W. Bhagwat ◽  
J. Tiwari ◽  
A. Choube ◽  
B. Pare
Keyword(s):  
Diethylene Glycol ◽  
Acidic Medium ◽  
Cetyltrimethylammonium Bromide ◽  
Reaction Rate ◽  
Chloride Ions ◽  
Kinetics And Mechanism ◽  
Product Analysis ◽  
Rate Determining Step ◽  
Chloramine T ◽  
Catalyzed Oxidation

The kinetics and mechanism of the C16TABcatalyzed oxidation of diethylene glycol (2,2?-oxydiethanol) by chloramine-T in acidic medium has been studied. The reaction has a first-order dependence on chloramine-T. With excess concentrations of other reactants, the reaction rate follows fractional order kinetics with respect to [diethylene glycol]. The micellar effect due to cetyltrimethylammonium bromide, a cationic surfactant, has been studied. The reaction is catalyzed by chloride ions as well. The small salt effect and increase in the reaction rate with increasing dielectric constant suggest the involvement of neutral molecules in the rate determining step. Addition of p-toluenesulfonamide retards the reaction rate. On the basis of product analysis, a pertinent mechanism is proposed.

Block copolymerization of poly(diethylene glycol phthalic anhydride) and methyl methacrylate initiated by potassium diperiodatonickelate(IV)

2006 ◽  
Vol 100 (2) ◽  
pp. 1312-1317
Author(s):  
Yinghai Liu ◽  
Libin Bai ◽  
Weiqi Zhou ◽  
Yuanwei Liu ◽  
Yanxiang Li ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Phthalic Anhydride ◽  
Diethylene Glycol ◽  
Block Copolymerization

Kinetics and mechanism of oxidation of diethylene glycol by dihydroxyditellutoargentate (III) in alkaline medium

2004 ◽  
Vol 2004 (10) ◽  
pp. 674-675 ◽  
Author(s):  
Jin-Huan Shan ◽  
Shu-Ying Huo ◽  
Shi-Gang Shen ◽  
Han-Wen Sun ◽  
Keyword(s):  
Alkaline Medium ◽  
Diethylene Glycol ◽  
Kinetics And Mechanism ◽  
Mechanism Of Oxidation
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