Reactions of carboxylic acids with ethylene oxide. I. Kinetics of the reaction of terephthalic acid with ethylene oxide

1969 ◽  
Vol 34 (10) ◽  
pp. 3086-3097 ◽  
Author(s):  
F. Mareš ◽  
J. Hetflejš ◽  
V. Bažant
Keyword(s):  
Ethylene Oxide ◽  
Carboxylic Acids ◽  
Terephthalic Acid ◽  
Kinetics Of

Kinetics of the reaction between terephthalic acid and ethylene oxide under high pressure

1976 ◽  
Vol 31 (6) ◽  
pp. 427-433 ◽  
Author(s):  
S. Bhatia ◽  
M. Gopala Rao ◽  
M. Someswara Rao
Keyword(s):  
High Pressure ◽  
Ethylene Oxide ◽  
Terephthalic Acid ◽  
Kinetics Of

THE KINETICS OF THE THERMAL REACTIONS OF ETHYLENE OXIDE

1963 ◽  
Vol 41 (12) ◽  
pp. 2956-2961 ◽  
Author(s):  
M. Lynne Neufeld ◽  
Arthur T. Blades
Keyword(s):  
Free Radicals ◽  
Free Radical ◽  
Ethylene Oxide ◽  
Thermal Reactions ◽  
Kinetics Of

The thermal reactions of ethylene oxide in the presence of an excess of propylene have been studied as a function of pressure and it has been found that there are two sets of products, acetaldehyde and free radicals, presumably methyl and formyl. These products are believed to arise from an excited acetaldehyde intermediate. Some evidence has been obtained for the occurrence of a surface-catalyzed rearrangement to acetaldehyde but the free radical products are uninfluenced by surface.

scholarly journals Isothermal Crystallization Kinetics of Poly(ethylene oxide)/Poly(ethylene glycol)-g-silica Nanocomposites

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 648
Author(s):  
Xiangning Wen ◽  
Yunlan Su ◽  
Shaofan Li ◽  
Weilong Ju ◽  
Dujin Wang
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Crystallization Kinetics ◽  
Isothermal Crystallization ◽  
Crystallization Rate ◽  
Poly Ethylene Glycol ◽  
Isothermal Crystallization Kinetics ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Kinetics Of

In this work, the crystallization kinetics of poly(ethylene oxide) (PEO) matrix included with poly(ethylene glycol) (PEG) grafted silica (PEG-g-SiO2) nanoparticles and bare SiO2 were systematically investigated by differential scanning calorimetry (DSC) and polarized light optical microscopy (PLOM) method. PEG-g-SiO2 can significantly increase the crystallinity and crystallization temperature of PEO matrix under the non-isothermal crystallization process. Pronounced effects of PEG-g-SiO2 on the crystalline morphology and crystallization rate of PEO were further characterized by employing spherulitic morphological observation and isothermal crystallization kinetics analysis. In contrast to the bare SiO2, PEG-g-SiO2 can be well dispersed in PEO matrix at low P/N (P: Molecular weight of matrix chains, N: Molecular weight of grafted chains), which is a key factor to enhance the primary nucleation rate. In particular, we found that the addition of PEG-g-SiO2 slows the spherulitic growth fronts compared to the neat PEO. It is speculated that the interfacial structure of the grafted PEG plays a key role in the formation of nuclei sites, thus ultimately determines the crystallization behavior of PEO PNCs and enhances the overall crystallization rate of the PEO nanocomposites.

S/X ratio impacts the profile and kinetics of carboxylic acids production from the acidogenic fermentation of dairy wastewater

2021 ◽  
pp. 117605
Author(s):  
Amanda de Sousa e Silva ◽  
Tasso Jorge Tavares Ferreira ◽  
Naassom Wagner Sales Morais ◽  
Erlon Lopes Pereira ◽  
André Bezerra dos Santos
Keyword(s):  
Carboxylic Acids ◽  
Dairy Wastewater ◽  
Acidogenic Fermentation ◽  
Kinetics Of

Kinetics of the reactions of fluorine and chlorine atoms with ethylene oxide (oxirane)

2002 ◽  
Vol 34 (2) ◽  
pp. 122-125 ◽  
Author(s):  
D. Ponomarev ◽  
M. D. Hurley ◽  
T. J. Wallington
Keyword(s):  
Ethylene Oxide ◽  
Chlorine Atoms ◽  
Kinetics Of
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