PREPARATION OF THE ETHERS OF VINYL ALCOHOL

1932 ◽  
Vol 7 (5) ◽  
pp. 464-471 ◽  
Author(s):  
William Chalmers
Keyword(s):  
Ethylene Glycol ◽  
Diethylene Glycol ◽  
Room Temperature ◽  
Vinyl Methyl ◽  
Vinyl Ethers ◽  
Butyl Ether ◽  
Vinyl Methyl Ether ◽  
Alkyl Ethers ◽  
First Time ◽  
Dialkyl Ethers

The simple vinyl alkyl ethers are readily prepared from the β-bromo-ethyl ethers by the action of solid sodium hydroxide. Besides the vinyl ethers, the dialkyl ethers of diethylene glycol are formed in these reactions. β-Bromo-ethers are obtainable from the mono-ethers of ethylene glycol through the use of phosphorus tribromide. The constants of several vinyl ethers are given for the first time. The preparation of vinyl methyl ether, a gas at room temperature, and of vinyl n-butyl ether, b.p. 93.3 °C., is described.

THE ACTIVATION OF PURIFIED HUMAN PLASMINOGEN IN SOLUTIONS OF ETHYLENE GLYCOLS

1963 ◽  
Vol 41 (1) ◽  
pp. 889-895 ◽  
Author(s):  
Phyllis S. Roberts
Keyword(s):  
Methyl Ester ◽  
Ethylene Glycol ◽  
Diethylene Glycol ◽  
Room Temperature ◽  
Fast Rate ◽  
Triethylene Glycol ◽  
Ethylene Glycols ◽  
Human Plasminogen ◽  
Glycol Solution ◽  
Rate Of Accumulation

Ethylene glycols have been found to allow activation of purified preparations of human plasminogen. The activity of the enzyme formed, plasmin, was measured using TAMe (p-toluene-sulphonyl-L-arginine methyl ester) as a substrate. In 50% (v/v) solutions of these compounds at pH 7.6 and 30 °C, plasmin accumulated faster in diethylene and triethylene glycols than in glycerol, but in ethylene glycol no plasmin was found. When lower concentrations of ethylene glycol (from zero to 50%) and shorter times of incubation were used, plasmin was found. With equimolar solutions (4.3 M) of glycerol and the three glycols, only diethylene glycol showed a fast rate of accumulation of plasmin. A 50% triethylene glycol solution partially inhibited the rate of spontaneous activation but stabilized the plasmin formed and therefore enzyme accumulated. At room temperature more plasmin accumulated than at higher temperatures when plasminogen was incubated in 50% triethylene glycol solution, and no plasmin was found when plasminogen was incubated at pH 7.6, 30 °C, in 50% solutions of propylene glycols, several ethers of the ethylene glycols, several polymers of various glycols, and dioxane.

AuPd/polyaniline as the anode in an ethylene glycol microfluidic fuel cell operated at room temperature

2014 ◽  
Vol 50 (60) ◽  
pp. 8151-8153 ◽  
Author(s):  
N. Arjona ◽  
A. Palacios ◽  
A. Moreno-Zuria ◽  
M. Guerra-Balcázar ◽  
J. Ledesma-García ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Ethylene Glycol ◽  
Room Temperature ◽  
Microfluidic Fuel Cell ◽  
First Time

AuPd/polyaniline was used for the first time, for ethylene glycol electrooxidation in a microfluidic fuel cell operated at room temperature.

Sustainable Synthesis of Vinyl Methyl Ether from Biomass-derived Ethylene Glycol Dimethyl Ether over Solid Base Catalysts

2021 ◽  
Author(s):  
Xin He ◽  
Xin Wen ◽  
Ke Wu ◽  
Haichao Liu
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Functional Polymers ◽  
Solid Base ◽  
Fine Chemicals ◽  
Vinyl Methyl ◽  
Solid Base Catalysts ◽  
Vinyl Methyl Ether ◽  
Base Catalysts ◽  
Ethylene Glycol Dimethyl Ether

Vinyl methyl ether (VME) is an important chemical intermediate for the production of functional polymers and fine chemicals. It is primarily produced in industry via the addition of methanol to...

THE ACTIVATION OF PURIFIED HUMAN PLASMINOGEN IN SOLUTIONS OF ETHYLENE GLYCOLS

1963 ◽  
Vol 41 (4) ◽  
pp. 889-895 ◽  
Author(s):  
Phyllis S. Roberts
Keyword(s):  
Methyl Ester ◽  
Ethylene Glycol ◽  
Diethylene Glycol ◽  
Room Temperature ◽  
Fast Rate ◽  
Triethylene Glycol ◽  
Ethylene Glycols ◽  
Human Plasminogen ◽  
Glycol Solution ◽  
Rate Of Accumulation

Ethylene glycols have been found to allow activation of purified preparations of human plasminogen. The activity of the enzyme formed, plasmin, was measured using TAMe (p-toluene-sulphonyl-L-arginine methyl ester) as a substrate. In 50% (v/v) solutions of these compounds at pH 7.6 and 30 °C, plasmin accumulated faster in diethylene and triethylene glycols than in glycerol, but in ethylene glycol no plasmin was found. When lower concentrations of ethylene glycol (from zero to 50%) and shorter times of incubation were used, plasmin was found. With equimolar solutions (4.3 M) of glycerol and the three glycols, only diethylene glycol showed a fast rate of accumulation of plasmin. A 50% triethylene glycol solution partially inhibited the rate of spontaneous activation but stabilized the plasmin formed and therefore enzyme accumulated. At room temperature more plasmin accumulated than at higher temperatures when plasminogen was incubated in 50% triethylene glycol solution, and no plasmin was found when plasminogen was incubated at pH 7.6, 30 °C, in 50% solutions of propylene glycols, several ethers of the ethylene glycols, several polymers of various glycols, and dioxane.

scholarly journals Highly sensitive ethylene glycol-doped PEDOT–PSS organic thin films for LPG sensing

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 18074-18083 ◽  
Author(s):  
Apsar Pasha ◽  
Syed Khasim ◽  
Omar A. Al-Hartomy ◽  
Mohana Lakshmi ◽  
K. G. Manjunatha
Keyword(s):  
Thin Film ◽  
Ethylene Glycol ◽  
Room Temperature ◽  
Low Cost ◽  
Organic Thin Films ◽  
Organic Thin Film ◽  
Thin Film Sensors ◽  
Highly Sensitive ◽  
First Time ◽  
Lpg Sensing

In this study, for the first time we report the fabrication of low-cost ethylene glycol (EG)-doped PEDOT–PSS (poly 3,4-ethylenedioxythiophene:polystyrene sulfonate) organic thin film sensors for the detection of LPG at room temperature.

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