Study of Properties of Solutions Based on Ethylene Carbonate and Poly(ethylene glycol)s with Different Chain Lengths

2020 ◽  
Vol 124 (9) ◽  
pp. 5046-5052
Author(s):  
Marta Kasprzyk ◽  
Aldona Zalewska ◽  
Wladyslaw Wieczorek
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Carbonate ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Chain Lengths

scholarly journals Polymer Electrolytes Based on Borane/Poly(ethylene glycol) Methyl Ether for Lithium Batteries

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Ali Murat Soydan ◽  
Recep Akdeniz
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Polymer Electrolytes ◽  
Lithium Ion ◽  
Poly Ethylene Glycol ◽  
Scanning Calorimetry ◽  
Molar Ratios ◽  
Poly Ethylene ◽  
Chain Lengths ◽  
Glycol Methyl Ether

This work presents a different approach to preparing polymer electrolytes having borate ester groups for lithium ion batteries. The polymers were synthesized by reaction between poly(ethylene glycol) methyl ether (PEGME) and BH3-THF complex. Molecular weight of PEGMEs was changed with different chain lengths. Then the polymer electrolytes comprising boron were prepared by doping of the matrices with CF3SO3Li at various molar ratios with respect to EO to Li and they are abbreviated as PEGMEX-B-Y. The identification of the PEGME-borate esters was carried out by FTIR and 1H NMR spectroscopy. Thermal properties of these electrolytes were investigated via thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The ionic conductivity of these novel polymer electrolytes was studied by dielectric-impedance spectroscopy. Lithium ion conductivity of these electrolytes was changed by the length of PEGME as well as the doping ratios. They exhibit approximate conductivities of 10−4 S·cm−1 at 30°C and 10−3 S·cm−1 at 100°C.

Quantitation of Poly(Ethylene Glycol) Concentration Using Raman Spectroscopy

1997 ◽  
Vol 51 (8) ◽  
pp. 1176-1178 ◽  
Author(s):  
Yanira Meléndez ◽  
Kimberley F. Schrum ◽  
Dor Ben-Amotz
Keyword(s):  
Raman Spectroscopy ◽  
Ethylene Glycol ◽  
Nonlinear Function ◽  
Weight Fraction ◽  
Raman Intensity ◽  
Poly Ethylene Glycol ◽  
Universal Scaling ◽  
Poly Ethylene ◽  
Chain Lengths ◽  
The Relationship

This study uses Raman spectroscopy to quantitate the amount of polymer in solution, in particular poly(ethylene glycol) dissolved in chloroform. For various chain lengths and polymer weight fraction ranges, it is shown that the ratios of peak intensities in the C–H stretching region may be used to quantitate polymer weight fraction with about 1% uncertainty. For low polymer weight fraction ranges (0–10%), the relationship between Raman intensity and polymer weight fraction is essentially linear, while at higher ranges (0–50%) the intensity follows a nonlinear function derived from basic concentration relationships and indicates a universal scaling with polymer chain length.

Equilibrium Swelling Behavior of Solid Supported Poly(ethylene glycol) Lipid Monolayers. Effects of Short Chain Lengths

Langmuir ◽  
2000 ◽  
Vol 16 (8) ◽  
pp. 3835-3845 ◽  
Author(s):  
Gerald Mathe ◽  
Christian Gege ◽  
Klaus R. Neumaier ◽  
Richard R. Schmidt ◽  
Erich Sackmann
Keyword(s):  
Ethylene Glycol ◽  
Swelling Behavior ◽  
Short Chain ◽  
Lipid Monolayers ◽  
Poly Ethylene Glycol ◽  
Equilibrium Swelling ◽  
Poly Ethylene ◽  
Chain Lengths

Self-Threading and Dethreading Dynamics of Poly(ethylene glycol)-Substituted Cyclodextrins with Different Chain Lengths

2007 ◽  
Vol 40 (9) ◽  
pp. 3256-3262 ◽  
Author(s):  
Youhei Inoue ◽  
Masahiko Miyauchi ◽  
Hiroki Nakajima ◽  
Yoshinori Takashima ◽  
Hiroyasu Yamaguchi ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Chain Lengths

Pressure-sensitive adhesion in the blends of poly(N-vinyl pyrrolidone) and poly(ethylene glycol) of disparate chain lengths

2002 ◽  
Vol 78 (8) ◽  
pp. 667-694 ◽  
Author(s):  
Anna A. Chalykh ◽  
Anatoly E. Chalykh ◽  
Mikhail B. Novikov ◽  
Mikhail M. Feldstein
Keyword(s):  
Ethylene Glycol ◽  
Vinyl Pyrrolidone ◽  
Poly Ethylene Glycol ◽  
Pressure Sensitive ◽  
Poly Ethylene ◽  
Chain Lengths

PEG–imidazolium-functionalized 6FDA–durene polyimide as a novel polymeric membrane for enhanced CO2 separation

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31083-31091 ◽  
Author(s):  
Irshad Kammakakam ◽  
SangYong Nam ◽  
Tae-Hyun Kim
Keyword(s):  
Ethylene Glycol ◽  
Polymeric Membrane ◽  
Co2 Separation ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Chain Lengths

A series of poly(ethylene glycol)–imidazolium-functionalized 6FDA–durene polyimides (PEG–Im-PIs) with a range of PEG chain lengths was developed.

Functional PEG building blocks via copolymerization of ethylene carbonate and tert-butyl glycidyl ether

2016 ◽  
Vol 7 (31) ◽  
pp. 5050-5059 ◽  
Author(s):  
G. Kapiti ◽  
H. Keul ◽  
M. Möller
Keyword(s):  
Ethylene Oxide ◽  
Ethylene Glycol ◽  
Ethylene Carbonate ◽  
Glycidyl Ether ◽  
Building Blocks ◽  
Poly Ethylene Glycol ◽  
Tert Butyl ◽  
Poly Ethylene ◽  
Butyl Glycidyl Ether

Functional poly(ethylene glycol) building blocks were synthesized with ethylene carbonate as a new source for ethylene oxide repeating units.

PIEZOELECTRIC PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-3-HEDROXYBUTYRATE)-CO-POLY(ETHYLENE GLYCOL) PRODUCED BY CONTROLLED MICROBIOLOGICAL BIOSYNTHESIS

2019 ◽  
Vol 10 (10) ◽  
Author(s):  
Anton Bonartsev ◽  
Vera Voinova ◽  
Elizaveta Akoulina ◽  
Andrey Dudun ◽  
Irina Zharkova ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Piezoelectric Properties ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene
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