Molecular weight dependence of healing and brittle fracture in amorphous polymers above the entanglement molecular weight

Autor: Stephen Prager, Douglas Brian Adolf, Matthew Tirrell
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