Determination of Diethylene Glycol in Polyethylene Terephthalate.

1965 ◽  
Vol 37 (11) ◽  
pp. 1306-1309 ◽  
Author(s):  
J. R. Kirby ◽  
A. J. Baldwin ◽  
R. H. Heidner
Keyword(s):  
Polyethylene Terephthalate ◽  
Diethylene Glycol

Formation of diethylene glycol in the polycondensation stage of polyethylene terephthalate synthesis

1977 ◽  
Vol 8 (6) ◽  
pp. 612-613
Author(s):  
S. S. Rozengauz ◽  
L. P. Repina ◽  
�. M. Aizenshtein
Keyword(s):  
Polyethylene Terephthalate ◽  
Diethylene Glycol

Gas-Liquid Chromatographic Identification and Determination of Alkanolamines. I. Application to Aerosol Hair Sprays

1971 ◽  
Vol 54 (5) ◽  
pp. 1175-1178
Author(s):  
Margaree H Champion ◽  
John H Jones
Keyword(s):  
Acetic Anhydride ◽  
Diethylene Glycol ◽  
Glycol Succinate ◽  
Diethylene Glycol Succinate ◽  
Liquid Chromatographic

Abstract Alkanolamines, in the absence of water, are converted to the amide ester or triacetate with acetic anhydride-pyridine mixture. The amide ester or triacetate of the alkanolamine is determined by GLC on a column containing diethylene glycol succinate on Chromosorb G. Procedures for determining alkanolamines in various hair sprays are described; recoveries by the proposed procedure were satisfactory. The method developed was applied to the following 4 alkanolamines: 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol, and triisopropanolamine.

scholarly journals The study of melting process of the new plugging material at thermomechanical isolation technology of permeable horizons of mine opening

2018 ◽  
Vol 60 ◽  
pp. 00027 ◽  
Author(s):  
Andrii Sudakov ◽  
Andrii Dreus ◽  
Diana Sudakova ◽  
Oleksandr Khamininch
Keyword(s):  
Composite Material ◽  
Polyethylene Terephthalate ◽  
Melting Process ◽  
Thermoplastic Composite ◽  
Operating Parameters ◽  
Insulation Material ◽  
Mine Opening ◽  
Experimental And Theoretical Studies ◽  
The Heat Balance

The article presents the results of experimental and theoretical studies, the purpose of which was to substantiate the technology of drilling wells isolation using new thermoplastic composite material. The basis of the proposed material is gravel, and secondary polyethylene terephthalate acts as a binding material. The use of the proposed insulation material avoids a number of disadvantages specific for traditional grouting mortars. The technology of material application provides its melting in a well by thermomechanical drilling. The article deals with the issues, related to the substantiation of the optimal formulation of a thermoplastic composite material based on secondary polyethylene terephthalate, and the determination of rational operating parameters of thermomechanical drilling, which allow to melt effectively the material at the bottom of a well. The possibility of material application for the insulation of absorbing horizons in borehole conditions has been proved. Based on the analysis of the heat balance at the bottom of a well, the calculation procedure has been proposed and the dependences of the velocity and time of thermomechanical melting of the grouting thermoplastic composite material on the operating parameters of drilling, thermal properties and geometric characteristics of the drill bit, have been determined.

Determination of phthalate acid esters plasticizers in polyethylene terephthalate bottles and its correlation with some physicochemical properties

2018 ◽  
Vol 68 ◽  
pp. 87-94 ◽  
Author(s):  
Daniel Salazar-Beltrán ◽  
Laura Hinojosa-Reyes ◽  
Carlos Palomino-Cabello ◽  
Gemma Turnes-Palomino ◽  
Aracely Hernández-Ramírez ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Polyethylene Terephthalate ◽  
Polyethylene Terephthalate Bottles ◽  
Acid Esters ◽  
Phthalate Acid Esters
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