Fracture mechanism of amorphous polystyrene
โ Scribed by A. A. Shunkevich; I. I. Novak; V. E. Korsukov
- Book ID
- 104979935
- Publisher
- Springer US
- Year
- 1976
- Tongue
- English
- Weight
- 365 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1573-8922
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๐ SIMILAR VOLUMES
## Abstract A series of commercial polystyrenes was tested using an instrumented impact tester to determine the fracture toughness __K__~__c__~ and critical strain energy release rate __G__~__c__~. Over the range of __M__~__w__~, 201,000 to 336,000, __K__~__c__~ increased from 1.38 MN/m^3/2^ to 1.7
The local dynamics of amorphous polystyrene have been investigated by incoherent inelastic and quasielastic neutron scattering in a temperature range of 20 to 300 K, below the glass transition temperature Tg ( = 373 K). The elasticscattering intensity shows an anomalous decrease at temperatures abov