Journal
EUROPEAN PHYSICAL JOURNAL E
Volume 37, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1140/epje/i2014-14010-9
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Funding
- Russian Foundation for Basic Research [10-03-00079a]
- Kamea Program, Israel Ministry of Absorption
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The instability in a jet of a viscoelastic semidilute entangled polymer solution under high stretching is discussed. Initially the jet is stable due to solution elasticity stopping the fluctuation growth. The modeling shows that a jet stretching results in a radial gradient in the polymer distribution: the polymer is concentrated in the jet centre, whereas the solvent is remaining near the surface. This viscous liquid shell demonstrates Raleigh-type instability resulting in the formation of individual droplets on the oriented filament. All process stages were observed experimentally.
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