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Title of Journal: Rheol Acta

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Abbravation: Rheologica Acta

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Springer Berlin Heidelberg

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DOI

10.1007/s100080000185

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1435-1528

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The role of convective constraint release in paral

Authors: Herwin Jerome Unidad Giovanni Ianniruberto
Publish Date: 2014/01/15
Volume: 53, Issue: 2, Pages: 191-198
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Abstract

Recent experiments by Li and Wang Macromolecules 435904–5908 2010 on parallel superposition flows of nearly monodisperse entangled polymer solutions revealing a flowinduced acceleration of the relaxation dynamics are here analyzed by using a simple differential constitutive equation based on the tube model to examine the role of convective constraint release CCR in these situations Contrary to the expectations of Wang and coworkers we find that such a flowinduced acceleration is not a CCR effect Rather our results suggest that the acceleration is simply due to convection per se not to be confused with CCR and to nonlinear orientation effectsThe authors would like to thank Xin Li for providing the data published by Li and Wang 2010 The authors are also grateful to the anonymous reviewers for their insightful comments that helped in improving the manuscript Financial support from the EU through the Marie Curie ITN DYNACOP project grant n° 214627 is also acknowledged


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Other Papers In This Journal:

  1. Effect of morphology on the interfacial slip of immiscible polypropylene/polystyrene blends
  2. Amorphous and crystalline states of ultrasoft colloids: a molecular dynamics study
  3. A hierarchical multi-mode MSF model for long-chain branched polymer melts part II: multiaxial extensional flows
  4. Novel bitumen/isocyanate-based reactive polymer formulations for the paving industry
  5. Can dynamical mechanical measurements predict brittle fracture behaviour?
  6. Self-reinforcement of polymers as a consequence of elongational flow
  7. Influence of the initial cooling temperature on the gelation and yield stress of waxy crude oils
  8. Molecular architecture and linear viscoelasticity of homogeneous ethylene/styrene copolymers
  9. Flow analysis of the weld line formation during injection mold filling of thermoplastics
  10. Squeeze flow of soft solids between rough surfaces
  11. Molecular orientation in non-Newtonian flow of dilute polymer solutions around spheres
  12. The contribution of frictional contacts to the shear strength of coarse glass bead powders and slurries
  13. End effects in rotational viscometry II. Pseudoplastic fluids at elevated Reynolds number
  14. Rheological behaviour of a high-melt-strength polypropylene at elevated pressure and gas loading for foaming purposes
  15. The effect of premature wall yield on creep testing of strongly flocculated suspensions
  16. Rheological and morphological properties of PA6/ECO nanocomposites
  17. Orientation distribution in injection molding: a further step toward more accurate simulations
  18. Fractal analysis of viscoelastic data with automated gel point location and its potential application in the investigation of therapeutically modified blood coagulation
  19. Modeling confinement in polymer nanocomposites from linear viscoelasticity data
  20. Linear viscoelasticity of styrenic block copolymers–clay nanocomposites
  21. On exact solutions of the flow equations for Bingham visco-plastic fluids through an eccentric annular cross-section
  22. A computational extensional rheology study of two biofluid systems
  23. Power-law creep and residual stresses in a carbopol gel
  24. Electrorheological response of SnO 2 and Y 2 O 3 nanoparticles in silicon oil
  25. Generation of inkjet droplet of non-Newtonian fluid
  26. Scaling and mesostructure of Carbopol dispersions
  27. Study of the non-isothermal glass fibre drawing process
  28. Influence of molecular parameters on the stress dependence of viscous and elastic properties of polypropylene melts in shear
  29. An error-minimizing approach to inverse Langevin approximations

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