Molecular weight dependence of healing and brittle fracture in amorphous polymers above the entanglement molecular weight
Autor: | Stephen Prager, Douglas Brian Adolf, Matthew Tirrell |
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Rok vydání: | 1985 |
Předmět: | |
Zdroj: | Journal of Polymer Science: Polymer Physics Edition. 23:413-427 |
ISSN: | 1542-9385 0098-1273 |
DOI: | 10.1002/pol.1985.180230214 |
Popis: | A model based on chain entanglements is developed to predict the molecular weight dependence of the fracture stress for brittle, amorphous polymers. It is then used in conjunction with the reptation model of polymer diffusion to predict the time and molecular weight dependence of the fracture stress in the closely related healing problem. Theoretical predictions are found to be in close agreement with experimental data. |
Databáze: | OpenAIRE |
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