| Autor: |
S.S Yakovenko, I.I Perepechko |
| Rok vydání: |
1981 |
| Předmět: |
|
| Zdroj: |
Polymer Science U.S.S.R.. 23:1301-1306 |
| ISSN: |
0032-3950 |
| DOI: |
10.1016/0032-3950(81)90353-1 |
| Popis: |
The plasticizing and “antiplasticizing” effect of moisture on polycaproamide was established. The addition of moisture displaces the glass temperature T g of the polymer to lower temperature and reduces the dynamic shear modulus G ′ above T g , which is typical of plasticization. Below T g on the other hand, the addition of moisture increases G ′, i.e. produces an effect typical of “antiplasticization”. Based on analysing temperature dependence of the low-frequency rate of sound c t and mechanical loss tan δ in the glass transition range several levels of supermolecular organization of PCA plasticized by moisture below T g were proposed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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