We did few experiments with dilute polymers, see the list of publications [here]. Most noticeable is the Physics of Fluds, 2005. However, these experiments have two-three major drawbacks:
- we do not know where the polymers in the flow
- we do not know precisely the amount of energy that is applied to the flow
- we do not know if polymers were stretched or not and if yes, how much
Now, the recent developments bring some hope to resolve at least two of the three problems – to see the polymers and maybe to know how much stress they feel.
Mechanochemistry: Polymers react to stress
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The latest polymers are chameleon-like: they change colour on deformation. The transduction mechanism underpinning this effect could be used to make polymers that respond in many other ways to mechanical stress.
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