Oscillatory flow birefringence of dilute polymer solutions
β Scribed by Peterlin, A.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1967
- Tongue
- English
- Weight
- 243 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0449-2986
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Oscillatory flow birefringence (OFB) measurements have been carried out for an extensive series of solutions containing narrowβdistribution, atactic, linear polystyrenes PS (10, 000 or 390, 000 __M__~__w__~) or poly(Ξ±βmethylstyrene) PMS (400,000 __M__~__w__~) in a highβviscosity solvent
Transient elongational flow, created by forcing a polymer solution across a narrow contraction, is characterized by a high strain rate of limited duration. Due to an inherent short residence time, this type of flow generally is considered as being less efficient in extending isolated flexible molecu