Effect of the Pyrolysis Soaking Time on CO2 Separation of Polyetherimide/Polyethylene Glycol-Based CMS Membranes

2013 ◽  
pp. 329-335
Author(s):  
W. Z. Wan Nurul Huda ◽  
M. A. Ahmad
Keyword(s):  
Polyethylene Glycol ◽  
Co2 Separation ◽  
Soaking Time

Study on Polyethylene Glycol Acrylate Crosslinked Gels as Phase Change Materials

2011 ◽  
Vol 299-300 ◽  
pp. 649-653
Author(s):  
Hong Zhang ◽  
Qian Qian Wang ◽  
Heng Xue Xiang ◽  
Xiao Lei Wang
Keyword(s):  
Polyethylene Glycol ◽  
Phase Change Materials ◽  
Cross Linking ◽  
Solution Polymerization ◽  
Good Activity ◽  
Chain Segment ◽  
Structural Morphology ◽  
Crystal Property ◽  
Soaking Time ◽  
Radical Solution

The cross-linking degree of polyethylene glycol acrylate (PEGA) gel by free-radical solution polymerization was investigated in which PEGA was prepared by chemical modification. The structural morphology, crystal property, thermal property and thermostability were investigated using scanning electron microscope (SEM), polarization microscope (POM), differential scanning calorimeter (DSC), and thermogravimetric analysis (TG), respectively. The results showed that the chain segment of PEG had good activity in lightly cross-linked PEGA gel, the crystallization enthalpy of PEGA gel achieved to 122 J/g, and the duration of its soaking time was about 490 s. Furthermore, chain segment of PEG were bound in PEGA gel, but the crystallization enthalpy of PEGA gel achieved to 64.60 J/g, its soaking time was continued for about 430 s. PEGA gel had a better thermal stability below 300 °C.

Improved CO2 separation performance of aqueous choline-glycine solution by partially replacing water with polyethylene glycol

2019 ◽  
Vol 495 ◽  
pp. 12-20
Author(s):  
Sida Liu ◽  
Hang Li ◽  
Yifeng Chen ◽  
Zhuhong Yang ◽  
Honglin Wang ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Co2 Separation ◽  
Separation Performance ◽  
Glycine Solution

CO2 separation using a hybrid choline-2-pyrrolidine-carboxylic acid/polyethylene glycol/water absorbent

2020 ◽  
Vol 257 ◽  
pp. 113962 ◽  
Author(s):  
Yifeng Chen ◽  
Yunhao Sun ◽  
Zhuhong Yang ◽  
Xiaohua Lu ◽  
Xiaoyan Ji
Keyword(s):  
Polyethylene Glycol ◽  
Carboxylic Acid ◽  
Co2 Separation

Immunocytochemical detection of hepatic carbohydrate metabolic enzymes: Improved resolution with polyethylene glycol embedding and visio-bond semithin sections

1992 ◽  
Vol 50 (1) ◽  
pp. 792-793
Author(s):  
Kuixiong Gao ◽  
Randal E. Morris ◽  
Bruce F. Giffin ◽  
Robert R. Cardell
Keyword(s):  
Polyethylene Glycol ◽  
Glycogen Phosphorylase ◽  
Phosphoenolpyruvate Carboxykinase ◽  
Glycogen Synthase ◽  
Metabolic Enzymes ◽  
Silver Stain ◽  
Accurate Localization ◽  
Immunocytochemical Detection ◽  
Semithin Sections ◽  
Parenchymal Cells

Several enzymes are involved in the regulation of anabolic and catabolic pathways of carbohydrate metabolism in liver parenchymal cells. The lobular distribution of glycogen synthase (GS), phosphoenolpyruvate carboxykinase (PEPCK) and glycogen phosphorylase (GP) was studied by immunocytochemistry using cryosections of normal fed and fasted rat liver. Since sections of tissue embedded in polyethylene glycol (PEG) show good morphological preservation and increased detectability for immunocytochemical localization of antigenic sites, and semithin sections of Visio-Bond (VB) embedded tissue provide higher resolution of cellular structure, we applied these techniques and immunogold-silver stain (IGSS) for a more accurate localization of hepatic carbohydrate metabolic enzymes.

Sign in / Sign up

Export Citation Format

Share Document