Modelling nonlinear polymer rheology is still challenging

Giuseppe Marrucci; Giovanni Ianniruberto

Korea-Australia Rheology Journal, Vol.17, No.3, 111-116, September, 2005

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Modelling nonlinear polymer rheology is still challenging

Giuseppe Marrucci^†, and Giovanni Ianniruberto

Universit`a Federico II, Piazzale Tecchio 80, I-80125 Napoli, Italy

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The new tube model with variable diameter (Marrucci and Ianniruberto, 2004), recently introduced to interpret new elongational data of polymer melts, is here extended to encompass arbitrary flows, specifically shear flows. The predicted results compare well with existing data of entangled polymer melts. Challenges still remain when the comparison is extended to recent elongational data on entangled solutions by Sridhar.

[References]

Doi M, Edwards SF, The Theory of Polymer Dynamics, Clarendon Press, Oxford. (1986)
Bach A, Almdal K, Rasmussen HK, Hassager O, Macromolecules, 36(14), 5174 (2003)
Hassager O, Polymer fluid mechanics: molecular orientation and stretching, Proc. XIVth Int. Congr. on Rheology, 22-27 August, Seoul (Korea), NF01-1. (2004)
Ianniruberto G, Marrucci G, J. Non-Newton. Fluid Mech., 79(2-3), 225 (1998)
Marrucci G, Ianniruberto G, Macromolecules, 36, 3934 (2004)
Marrucci G, Ianniruberto G, J. Non-Newton. Fluid Mech., 28, 42
Munstedt H, J. Rheol., 24, 847 (1980)
Schweizer T, van Meerveld J, Ottinger HC, J. Rheol., 48(6), 1345 (2004)
Sridhar T, Bhattacharjee PK, Nguyen DA, Some unresolved issues of extensional rheology of entangled polymer systems, Wales Conference on Elongational Flow. (2005)
Wagner MH, Schaeffer J, J. Rheol., 32, 1 (1992)
Wagner MH, Rubio P, Bastian H, J. Rheol., 45(6), 1387 (2001)

[1] Doi M, Edwards SF, The Theory of Polymer Dynamics, Clarendon Press, Oxford. (1986)

[2] Bach A, Almdal K, Rasmussen HK, Hassager O, Macromolecules, 36(14), 5174 (2003)

[3] Hassager O, Polymer fluid mechanics: molecular orientation and stretching, Proc. XIVth Int. Congr. on Rheology, 22-27 August, Seoul (Korea), NF01-1. (2004)

[4] Ianniruberto G, Marrucci G, J. Non-Newton. Fluid Mech., 79(2-3), 225 (1998)

[5] Marrucci G, Ianniruberto G, Macromolecules, 36, 3934 (2004)

[6] Marrucci G, Ianniruberto G, J. Non-Newton. Fluid Mech., 28, 42

[7] Munstedt H, J. Rheol., 24, 847 (1980)

[8] Schweizer T, van Meerveld J, Ottinger HC, J. Rheol., 48(6), 1345 (2004)

[9] Sridhar T, Bhattacharjee PK, Nguyen DA, Some unresolved issues of extensional rheology of entangled polymer systems, Wales Conference on Elongational Flow. (2005)

[10] Wagner MH, Schaeffer J, J. Rheol., 32, 1 (1992)

[11] Wagner MH, Rubio P, Bastian H, J. Rheol., 45(6), 1387 (2001)