Results 291 to 300 of about 3,929,860 (354)
Some of the next articles are maybe not open access.

A thermoelectric voltage effect in polyethylene oxide

Journal of Physics D: Applied Physics, 2003
The conductivity of polyethylene oxide (PEO) is described with a three-dimensional hopping model considering electrostatic interactions between the ions. Ions fluctuate over energy-barriers in a multi-well potential. To decide whether positive or negative charges are responsible for this conductivity, the thermoelectric voltage is measured. The samples
Wagner, Achim   +2 more
openaire   +2 more sources

Polyethylene oxide/garnet-type Li6.4La3Zr1.4Nb0.6O12 composite electrolytes with improved electrochemical performance for solid state lithium rechargeable batteries

Composites Science And Technology, 2019
Next generation lithium batteries require new electrolytes with good safety, excellent ionic conductivity, high electrochemical stability and good cycling performance. Herein, we first report a solid composite polymer electrolyte comprises of Li6.4La3Zr1.
Kangqiang He   +7 more
semanticscholar   +1 more source

Electron-transfer reaction of polyethylene oxide-modified myoglobin in polyethylene oxide oligomers

Journal of Electroanalytical Chemistry, 1992
Abstract Electron transfer from an indium tin oxide (ITO) electrode to myoglobin (Mb) in polyethylene oxide (PEO) oligomer was studied. The native Mb was chemically modified with activated PEO (molar mass of 5000 g) to solubilize in the PEO oligomer.
Hiroyuki Ohno, Takahiro Tsukuda
openaire   +1 more source

Vacuum-Ultraviolet-Induced Oxidation of Polyethylene

Macromolecules, 1994
The treatment of a polymer results in complex changes in the chemical structure of the polymer surface. Because changes occur in a very shallow surface layer (on the order of 10 nm) and owing to their complexity, the analysis of the chemical structures formed during plasma treatment is very difficult.
A. Hollander   +2 more
openaire   +2 more sources

Oxidation of polyethylene glycols by alcohol dehydrogenase

Biochemical Pharmacology, 1989
The present studies were undertaken to investigate the enzymology of a fatal toxic syndrome that resulted from the absorption and subsequent oxidation of polyethylene glycol (PEG). The presence of organic acids of PEG in the blood of poisoned patients and in an animal model suggested that the metabolism of PEG involved sequential oxidations by alcohol ...
D A, Herold, K, Keil, D E, Bruns
openaire   +2 more sources

Morphology of polymer crystals: Screw dislocations in polyethylene, polymethylene oxide and polyethylene oxide

Polymer, 1964
Abstract Single crystals of polyethylene, polymethylene oxide and polyethylene oxide have been prepared in suitable solvents at a variety of temperatures. The spacings between successive steps of the terraces and spiral ramps on the crystal surfaces have been measured.
W.J. Barnes, F.P. Price
openaire   +1 more source

Starch-filled polyethylene in a composting environment: Evidence for polyethylene matrix oxidation

Journal of Environmental Polymer Degradation, 1993
Two series of starch-filled polyethylene films, consisting of high-density or low-density polyethylene and 0–20% starch, have been exposed for 60 days to a controlled composting environment. Evidence is reported that the oxidation of the polyethylene matrix is dependent upon the polyethylene type and content of starch.
CHIELLINI, EMO   +5 more
openaire   +3 more sources

The oxidation of irradiated polyethylene—I radio-oxidation

The International Journal of Applied Radiation and Isotopes, 1959
Abstract When polyethylene is subjected to high energy ionizing radiation—either electrons, γ- or X-rays, protons or α-particles—a number of chemical changes are produced which result in profound changes in the physical properties. These changes include the formation of crosslinks, main chain fracture, and unsaturation.
R.M. Black, A. Charlesby
openaire   +1 more source

Cerium oxide and peppermint oil loaded polyethylene oxide/graphene oxide electrospun nanofibrous mats as antibacterial wound dressings

, 2019
Wound healing is a systematic response that can heal acute and chronic wounds by effectively regenerating new connective tissues with specific microstructures and function.
B. Suganya Bharathi, T. Stalin
semanticscholar   +1 more source

The mechanism of polyethylene oxidation

Journal of Applied Polymer Science, 1959
AbstractAs evidenced by formation of peroxides and carbonyl, reaction occurs during the oxidation induction period of polyethylene. The meaning of the term oxidation induction period is revealed by the tremendous change in melt index, carbonyl, density, color, tensile, and elongation occurring towards the end of this time period.
openaire   +1 more source

Home - About - Disclaimer - Privacy