| Autor: |
L.G. Kazaryan, I.M. Abramova, V.I. Serenkov, V.S. Tikhomirov, N.I. Bol'shakova |
| Rok vydání: |
1975 |
| Předmět: |
|
| Zdroj: |
Polymer Science U.S.S.R.. 17:2693-2698 |
| ISSN: |
0032-3950 |
| DOI: |
10.1016/0032-3950(75)90072-6 |
| Popis: |
Results are described of X-ray and electron microscope studies of structural changes in a tetrafluorethylene-ethylene copolymer under the effect of γ-radiation, according to the dose and temperature of irradiation. It was found that in a copolymer irradiated at 150 and 250° crystallite dimensions increase irreversibly, whereas heating without irradiation is accompanied by a reversible increase. An irreversible increase in the dimensions of crystallites is apparently due to processes of crosslinking in the copolymer in γ-radiation which result in fixing the structure organized at high temperature, i.e. in radiation annealing. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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