Agarwal, U. S. ; Mashelkar, R. A. (1994) On the stability of grafted polymer molecules in elongational flows Journal of Non-Newtonian Fluid Mechanics, 54 . pp. 1-10. ISSN 0377-0257
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037702...
Related URL: http://dx.doi.org/10.1016/0377-0257(94)80012-X
Abstract
In recent literature relating to drag reduction by polymeric additives, it has been purported that grafting side chains is a way of enhancing their shear stability. A careful analysis of the experimental reports shows that grafting in fact reduces the shear stability of long-chain polymers. A simple mechanistic analysis of the fracture of an ideal grafted chain molecule has been performed to support this finding. Some guidelines for the design of stable and effective drag reducing macromolecules are proposed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Shear Stability; Grafted Polymers; Drag Reduction |
| ID Code: | 22267 |
| Deposited On: | 23 Nov 2010 08:38 |
| Last Modified: | 06 Jun 2011 09:01 |
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