Molecular mobility and relaxation processes in crosslinked epoxide polymers

1971 ◽  
Vol 13 (1) ◽  
pp. 142-149 ◽  
Author(s):  
I.I. Perepechko ◽  
L.A. Kvacheva
Keyword(s):  
Molecular Mobility ◽  
Relaxation Processes ◽  
Epoxide Polymers

Features of radiothermoluminescence of polypropylene and ethylene propylenediene elastomer SKEPT-4044 compositions with nanoscale metal-containing fillers

2020 ◽  
pp. 66-73
Author(s):  
A.M. Magerramov ◽  
◽  
N.I. Kurbanova ◽  
M.N. Bayramov ◽  
N.A. Alimirzoyeva ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Molecular Mobility ◽  
Fe3o4 Nanoparticles ◽  
Low Temperatures ◽  
Frost Resistance ◽  
Relaxation Processes ◽  
Ethylene Propylene ◽  
Temperature Range ◽  
Β Relaxation

Using radiothermoluminescence (RTL), the molecular mobility features in the temperature range of 77-300 K were studied for the polypropylene (PP)/ethylene propylene diene elastomer SKEPT-4044 with NiO, Cu2O and Fe3O4 nanoparticles (NPs) based on ABS-acrylonitrile butadiene or SCS-divinyl styrene matrices. It has been shown that the introduction of nanofillers in PP significantly affects the nature and temperature of γ- and β-relaxation processes, while the region of manifestation of the β-process noticeably shifts to the region of low temperatures. Composites with Cu2O NPs have a higher β-transition temperature Tβ than composites with other NPs. It was found that PP/SKEPT-4044 composites with Cu2O NPs with a dispersion of 11-15 nm and acrylonitrile butadiene thermoplastics have optimal frost resistance compared to other compositions.

Molecular mobility and relaxation processes in an epoxy matrix

1984 ◽  
Vol 20 (3) ◽  
pp. 271-274 ◽  
Author(s):  
O. V. Startsev ◽  
I. I. Perepechko
Keyword(s):  
Molecular Mobility ◽  
Epoxy Matrix ◽  
Relaxation Processes

Molecular mobility and relaxation processes in some polyimides

1974 ◽  
Vol 16 (7) ◽  
pp. 1910-1915 ◽  
Author(s):  
I.I. Perepechko ◽  
A. Mirzakarimov ◽  
V.V. Rodionov ◽  
V.D. Vorob'ev
Keyword(s):  
Molecular Mobility ◽  
Relaxation Processes

Activation energy of relaxation processes in chalcogenide glasses

2013 ◽  
Vol 34 (0) ◽  
pp. 59-63
Author(s):  
А. А. Горват ◽  
В. М. Кришеник ◽  
А. Е. Кріштофорій ◽  
В. В. Мінькович ◽  
О. А. Молнар
Keyword(s):  
Activation Energy ◽  
Chalcogenide Glasses ◽  
Relaxation Processes
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