Influence of stabilizers of thermooxidative degradation of poly-4-methyl-1-pentene on its viscoelastic properties
| Autor: | A. I. Krivonosov, I.I. Perepechko, B.Ya. Mar'yasin |
|---|---|
| Rok vydání: | 1981 |
| Předmět: |
Arrhenius equation
chemistry.chemical_classification Cantilever Materials science General Engineering 4-Methyl-1-pentene Polymer Atmospheric temperature range Viscoelasticity symbols.namesake chemistry.chemical_compound chemistry symbols Relaxation (physics) Composite material Stabilizer (chemistry) |
| Zdroj: | Polymer Science U.S.S.R.. 23:1413-1420 |
| ISSN: | 0032-3950 |
| DOI: | 10.1016/0032-3950(81)90108-8 |
| Popis: | The influence of stabilizers of thermooxidative degration of poly-4-methyl-1-pentene on its viscoelastic properties has been investigated by the technique of forced resonance vibrations of a specimen held as a cantilever. The addition of stabilizers to the polymer influences molecular mobility and relaxation processes in the latter, thus changing the value of the dynamic elastic modulus E′ in the low temperature range. This change is related to the influence of the stabilizers on the supermolecular organization of poly-4-methyl-1-pentene. In addition, it is shown that the value of the pre-exponential factor τ0 in the Arrhenius equation is not constant, but depends on temperature and on the type of stabilizer being used. |
| Databáze: | OpenAIRE |
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