Synthesis of amphiphilic (meth)acrylates with oligo(ethylene glycol) and (or) oligo(propylene glycol) blocks by the esterification of (meth)acrylic acid

2021 ◽  
pp. 50982
Author(s):  
Dmitry V. Orekhov ◽  
Oleg A. Kazantsev ◽  
Sergey V. Orekhov ◽  
Alexey P. Sivokhin ◽  
Denis M. Kamorin ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Ethylene Glycol ◽  
Propylene Glycol ◽  
Meth Acrylic Acid

Dual hydrophilic polymers based on (meth)acrylic acid and poly(ethylene glycol) – synthesis and water uptake behavior

2010 ◽  
Vol 1 (10) ◽  
pp. 1669 ◽  
Author(s):  
Andreas Krieg ◽  
Christian Pietsch ◽  
Anja Baumgaertel ◽  
Martin D. Hager ◽  
C. Remzi Becer ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Ethylene Glycol ◽  
Water Uptake ◽  
Hydrophilic Polymers ◽  
Poly Ethylene Glycol ◽  
Meth Acrylic Acid ◽  
Poly Ethylene

Hydrogenolysis of glucose and fructose in glycol solutions over CuO-MgO-ZrO2 catalyst

2020 ◽  
pp. 48-55
Author(s):  
M.E. Sharanda ◽  
◽  
E.A. Bondarenko ◽  
Keyword(s):  
Ethylene Glycol ◽  
Propylene Glycol ◽  
Flow Reactor ◽  
General Trend ◽  
Raw Materials ◽  
Reaction Products ◽  
Renewable Raw Materials ◽  
High Partial Pressure ◽  
Zro2 Catalyst ◽  
Phase Process

Ethylene glycol and propylene glycol are important representatives of polyols. On an industrial scale, they are obtained from petrochemical raw materials. Within a decade, significant efforts were made for the producing of polyols from biologically renewable raw materials - carbohydrates. The general trend for carbohydrate hydrogenolysis includes application of liquid-phase process with the use of modified metal-oxide catalysts, at 120-120 ° C and pressure of 3MPa or above. So high pressure is used for the reason to increase hydrogen solubility, and also due to the high partial pressure of low boiling solvents. We supposed that usage of high boiling solvents could allow hydrogenolysis to be performed at the lower pressure. Ethylene glycol and propylene glycol are of particular interest as such kind of solvent since they are both the main products of glucose hydrogenolysis. In this work, the process of hydrogenolysis of glucose and fructose over Cu / MgO-ZrO2 catalyst have been studied at temperature range of 160-200 °C and a pressure of 0.1-0.3 MPa in a flow reactor. The solvents were simultaneously the target products of the reaction - ethylene glycol and / or propylene glycol. Gas chromatography and 13C NMR were used for the reaction products identification. It was found that the solubility of glucose in propylene glycol is 21 % by weight, and in ethylene glycol 62% by weight. It was pointed out that the process of hydrogenolysis can take place at a pressure close to atmospheric. Under these conditions, the conversion of hexoses reaches 96-100 %. The reaction products are preferably propylene glycol and ethylene glycol. The total selectivity for C3-2 polyols is 90-94 %, that is higher than in the hydrogenolysis of glucose in aqueous solution.

Thermo- and pH-sensitive behavior of hydrogels based on oligo (ethylene glycol) methacrylates and acrylic acid

2011 ◽  
Vol 47 (3) ◽  
pp. 1280-1288 ◽  
Author(s):  
Y. Wang ◽  
Z. C. Yuan ◽  
D. J. Chen
Keyword(s):  
Acrylic Acid ◽  
Ethylene Glycol ◽  
Ph Sensitive ◽  
Sensitive Behavior

Determination of Small Amounts of 1,2-Propylene Glycol in Ethylene Glycol

1952 ◽  
Vol 24 (6) ◽  
pp. 1053-1055 ◽  
Author(s):  
W. A. Cannon ◽  
L. C. Jackson
Keyword(s):  
Ethylene Glycol ◽  
Propylene Glycol

Efficient bimetallic NiCu-SiO2 catalysts for selective hydrogenolysis of xylitol to ethylene glycol and propylene glycol

2018 ◽  
Vol 220 ◽  
pp. 251-263 ◽  
Author(s):  
Hailong Liu ◽  
Zhiwei Huang ◽  
Haixiao Kang ◽  
Xuemei Li ◽  
Chungu Xia ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Propylene Glycol ◽  
Selective Hydrogenolysis

Betaine + (Glycerol or Ethylene Glycol or Propylene Glycol) Deep Eutectic Solvents for Extractive Purification of Gasoline

2018 ◽  
Vol 3 (44) ◽  
pp. 12582-12590 ◽  
Author(s):  
Kristina Zagajski Kučan ◽  
Marijana Perković ◽  
Karlo Cmrk ◽  
Dominik Načinović ◽  
Marko Rogošić
Keyword(s):  
Ethylene Glycol ◽  
Propylene Glycol ◽  
Deep Eutectic Solvents
Sign in / Sign up

Export Citation Format

Share Document