Flow-induced scission of isolated macromolecules
- 15 March 1988
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 88 (6), 4022-4028
- https://doi.org/10.1063/1.453855
Abstract
We review experimental results on the degradation of stretched polymer molecules in strong extensional flow fields. Atactic polystyrene and polyethylene oxide both show closely central scission along the backbone of the chain. We present a theoretical approach based upon a modified thermally activated barrier to scission model. This successfully describes the scission process as a function of molecular weight and stiffness and strain rate.Keywords
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