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Rheological characterization in shear of a model dumbbell polymer concentrated solution

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Stadler, Florian [UCL] Rajan, M. [Eindhoven University of Technology] Agarwal, U.S. [Eindhoven University of Technology] Liu, Chen-Yang [Laboratory of Engineering Plastics Institute of Chemistry, The Chinese Academy of Sciences] George, K.E. [Cochin University of Science and Technology] Bailly, Christian [UCL]

We investigate the linear and non-linear rheological behavior in shear of a concentrated solution of “dumbbell” polystyrene with long linear backbone and dense short brushes at both ends and compare it with corresponding linear polymers. This type of dumbbells has never been rheologically characterized before. In linear viscoelasticity, the dumbbell polymers show significant differences with conventional linear polymers. In particular, the reptation relaxation of the dumbbell is strongly slowed down. Furthermore, the addition of the side chains increases the friction so that the dumbbell lies above the η 0 vs. number of entanglements relation of linear samples. Transient shear rheology experiments on weakly entangled solutions show a retardation of the chain stretch relaxation of the dumbbell by a factor 2.5 vs. a linear polymer with the same Rouse time. Additionally, a second peak in the transient viscosity is observed at high shear rates.

  1. Agarwal U. S., Effect of initial conformation, flow strength, and hydrodynamic interaction on polymer molecules in extensional flows, 10.1063/1.1287175
  2. Agarwal Uday Shankar, Polymer Properties through Structure, Handbook of Polymer Reaction Engineering ISBN:9783527619870 p.679-720, 10.1002/9783527619870.ch13
  3. Berry G. C., Fox T.G, The viscosity of polymers and their concentrated solutions, Advances in Polymer Science ISBN:3540040323 p.261-357, 10.1007/bfb0050985
  4. Bhattacharjee P. K., Oberhauser J. P., McKinley G. H., Leal L. G., Sridhar T., Extensional Rheometry of Entangled Solutions, 10.1021/ma0118623
  5. Bird RB, Curtiss CF, Armstrong RC, Hassager O (1987) Dynamics of polymeric fluids, volume 2: kinetic theory, 2nd edn. Wiley, New York
  6. Brandrup J, Immergut EH (1999) Polymer handbook, 3rd edn. Wiley, New York
  7. Carella J. M., Gotro J. T., Graessley W. W., Thermorheological effects of long-chain branching in entangled polymer melts, 10.1021/ma00157a031
  8. Chen Xue, Stadler Florian J., Münstedt Helmut, Larson Ronald G., Method for obtaining tube model parameters for commercial ethene/α-olefin copolymers, 10.1122/1.3305721
  9. Cox W. P., Merz E. H., Correlation of dynamic and steady flow viscosities, 10.1002/pol.1958.1202811812
  10. Dealy John M., Larson Ronald G., Structure and Rheology of Molten Polymers : From Structure to Flow Behavior and Back Again, ISBN:9783446217713, 10.3139/9783446412811
  11. Ferry JD (1980) Viscoelastic properties of polymers. Wiley, New York
  12. Fetters LJ, Lohse DJ, Colby RH (2007) Chain dimensions and entanglement spacings. In: Mark JE (ed) Physical properties of polymers, 2nd edn. Springer, Heidelberg
  13. Graessley William W., Molecular Entanglement Theory of Flow Behavior in Amorphous Polymers, 10.1063/1.1697198
  14. Hatzikiriakos Savvas G., Vlassopoulos Dimitrios, Brownian dynamics simulations of shear-thickening in dilute polymer solutions, 10.1007/bf00366914
  15. Hilliou Loic, Vlassopoulos Dimitris, Time-Periodic Structures and Instabilities in Shear-Thickening Polymer Solutions, 10.1021/ie0110078
  16. Houli Sophia, Iatrou Hermis, Hadjichristidis Nikos, Vlassopoulos Dimitris, Synthesis and Viscoelastic Properties of Model Dumbbell Copolymers Consisting of a Polystyrene Connector and Two 32-Arm Star Polybutadienes, 10.1021/ma0204709
  17. John MS, Sekhon G, Armstrong RC (1987) The response of polymer molecules in a flow. Adv Chem Phys 66:153
  18. Klucker Rolf, Candau Francoise, Schosseler Francois, Transient Behavior of Associating Copolymers in a Shear Flow, 10.1021/ma00123a005
  19. Kume Takuji, Hattori Takayuki, Hashimoto Takeji, Time Evolution of Shear-Induced Structures in Semidilute Polystyrene Solutions, 10.1021/ma9611679
  20. Larson R.G., The role of molecular folds and ‘pre-conditioning’ in the unraveling of polymer molecules during extensional flow, 10.1016/s0377-0257(00)00125-7
  21. Liu Chenyang, He Jiasong, Ruymbeke Evelyne van, Keunings Roland, Bailly Christian, Evaluation of different methods for the determination of the plateau modulus and the entanglement molecular weight, 10.1016/j.polymer.2006.04.054
  22. Menezes E. V., Graessley W. W., Nonlinear rheological behavior of polymer systems for several shear-flow histories, 10.1002/pol.1982.180201006
  23. Osaki Kunihiro, Nishimura Yoshifumi, Kurata Michio, Viscoelastic properties of semidilute polystyrene solutions, 10.1021/ma00148a019
  24. Osaki K., Inoue T., Isomura T., Stress overshoot of polymer solutions at high rates of shear, 10.1002/1099-0488(20000715)38:14<1917::aid-polb100>3.0.co;2-6
  25. Park Seung Joon, Larson Ronald G., Dilution exponent in the dynamic dilution theory for polymer melts, 10.1122/1.1530156
  26. Pearson D., Herbolzheimer E., Grizzuti N., Marrucci G., Transient behavior of entangled polymers at high shear rates, 10.1002/polb.1991.090291304
  27. Rajan Merina, Velthem Pascal V., Zhang Mingfu, Cho Donghyun, Chang Taihyun, Agarwal Uday S., Bailly Christian, George K. E., Lemstra Piet J., Synthesis and Characterization of Model Dumbbell Polymers, 10.1021/ma061926f
  28. Polymers as Rheology Modifiers, ISBN:0841220093, 10.1021/bk-1991-0462
  29. Smith D. E., Response of Flexible Polymers to a Sudden Elongational Flow, 10.1126/science.281.5381.1335
  30. Smith D. E., Single-Polymer Dynamics in Steady Shear Flow, 10.1126/science.283.5408.1724
  31. Stadler Florian J., Effect of incomplete datasets on the calculation of continuous relaxation spectra from dynamic-mechanical data, 10.1007/s00397-010-0479-0
  32. Stadler F. J., Evidence of intra-chain phase separation in molten short-chain branched polyethylene, 10.3144/expresspolymlett.2011.33
  33. Stadler Florian J., Bailly Christian, A new method for the calculation of continuous relaxation spectra from dynamic-mechanical data, 10.1007/s00397-008-0303-2
  34. Stadler Florian J., van Ruymbeke Evelyne, An Improved Method To Obtain Direct Rheological Evidence of Monomer Density Reequilibration for Entangled Polymer Melts, 10.1021/ma101955d
  35. Stadler Florian J., Piel Christian, Kaschta Joachim, Rulhoff Sascha, Kaminsky Walter, Münstedt Helmut, Dependence of the zero shear-rate viscosity and the viscosity function of linear high-density polyethylenes on the mass-average molar mass and polydispersity, 10.1007/s00397-005-0042-6
  36. Stadler Florian J., Kaschta Joachim, Münstedt Helmut, Thermorheological Behavior of Various Long-Chain Branched Polyethylenes, 10.1021/ma702367a
  37. Stadler Florian J., Pyckhout-Hintzen Wim, Schumers Jean-Marc, Fustin Charles-André, Gohy Jean-François, Bailly Christian, Linear Viscoelastic Rheology of Moderately Entangled Telechelic Polybutadiene Temporary Networks, 10.1021/ma802488a
  38. Tant MR, Mauritz KA, Wilkes GL (1997) Ionomers - synthesis, structure, properties and applications. Blackie, London
  39. Trinkle S (2001) Dissertation - einfluss der topologie auf die rheologischen eigenschaften von polymeren. University Freiburg, Freiburg
  40. van Ruymbeke Evelyne, Kapnistos Michael, Vlassopoulos Dimitris, Huang Tianzi, Knauss Daniel M., Linear Melt Rheology of Pom-Pom Polystyrenes with Unentangled Branches, 10.1021/ma062487n
  41. Vrahopoulou E.P., McHugh A.J., Shear-thickening and structure formation in polymer solutions, 10.1016/0377-0257(87)85041-3
  42. Wasserman Scott H., Graessley William W., Prediction of linear viscoelastic response for entangled polyolefin melts from molecular weight distribution, 10.1002/pen.10472
  43. Wood-Adams Paula, Costeux Stéphane, Thermorheological Behavior of Polyethylene:  Effects of Microstructure and Long Chain Branching, 10.1021/ma0017034
  44. Yamakawa H (1971) Modern theory of polymer solutions. Harper and Row, New York
  45. Ye Xiangnan, Sridhar Tam, Shear and Extensional Properties of Three-Arm Polystyrene Solutions, 10.1021/ma002192o
Bibliographic reference Stadler, Florian ; Rajan, M. ; Agarwal, U.S. ; Liu, Chen-Yang ; George, K.E. ; et. al. Rheological characterization in shear of a model dumbbell polymer concentrated solution . In: Rheologica Acta : an international journal of rheology, Vol. 50, no. 5-6, p. 491-501 (juin 2011)
Permanent URL http://hdl.handle.net/2078.1/95146