Flow-induced scission of isolated macromolecules

J. A. Odell; A. Keller; Y. Rabin

doi:10.1063/1.453855

Flow-induced scission of isolated macromolecules

J. A. Odell
, A. Keller
, Y. Rabin

University of Bristol
Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

135 Scopus citations

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.

Original language	English
Pages (from-to)	4022-4028
Number of pages	7
Journal	Journal of Chemical Physics
Volume	88
Issue number	6
DOIs	https://doi.org/10.1063/1.453855
State	Published - 1988
Externally published	Yes

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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.",

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AB - 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.

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Flow-induced scission of isolated macromolecules

Abstract

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