Novel rheological features of molten SEBS copolymers: Mechanical relaxation at low frequencies and flow split

European Polymer Journal

Volumn 44, Issue 10, 2008, Pages 3213-3221

  Arevalillo, Alfonso ^a   Muñoz, María Eugenia ^a   Santamaría, Anton ^a   Fraga, Luisa ^b   Barrio, Juan Antonio ^b  

^a UNIVERSITY OF THE BASQUE COUNTRY UPV EHU   (Spain)

^b REPSOL YPF   (Spain)

Author keywords

Cylinder alignment; Entanglements; Flow split; Mechanical relaxation; Rheology; SEBS

Indexed keywords

ABS RESINS; ALIGNMENT; BOND (MASONRY); BUTENES; COPOLYMERIZATION; COPOLYMERS; ETHYLENE; PLASTIC PRODUCTS; POLYMERS; STYRENE;

CYLINDER ALIGNMENT; ENTANGLEMENTS; FLOW SPLIT; MECHANICAL RELAXATION; RHEOLOGY; SEBS;

CYLINDERS (SHAPES);

EID: 53149138906     PISSN: 00143057     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.eurpolymj.2008.07.028     Document Type: Article

References (50)

1. Chung C.I., and Gale J.C. Newtonian behaviour of a styrene-butadiene-styrene block copolymer. J Polym Sci 14 6 (1976) 1149-1156
2. Gouinlock E.V., and Porter R.S. Linear dynamic mechanical properties of an SBS block copolymer. Polym Eng Sci 17 8 (1977) 534-542
3. Chung C.I., and Lin M.I. Nature of melt rheological transition in a styrene-butadiene-styrene block copolymer. J Polym Sci, Polym Phys 16 3 (1978) 545-553
4. Cohen R.E., and Ramos A.R. Homogeneous and heterogeneous blends of polybutadiene, polyisoprene, and corresponding diblock copolymers. Macromolecules 12 (1979) 131-134
5. Widmaier J.M., and Meyer G.C. Structural evolution of an ABA poly(styrene-b-isoprene) block copolymer with temperature. J Polym Sci, Polym Phys 18 11 (1980) 2217-2225
6. Cohen R.E., and Wilfong D.E. Properties of block copolymers and homopolymer blends comprised of 1,2-polybutadiene and 1, 4-polybutadiene. Macromolecules 15 (1982) 370-375
7. Bates F.S. Block copolymers near the microphase separation transition. 2. Linear dynamic mechanical properties. Macromolecules 17 (1984) 2607-2613
8. Han C.D., and Kim J. Rheological technique for determining the order-disorder transition of block copolymers. J Polym Sci, Polym Phys 25 8 (1987) 1741-1764
9. Han C.D., Kim J., and Kim J.K. Determination of the order-disorder transition temperature of block copolymers. Macromolecules 22 (1989) 383-394
10. Rosedale J.H., and Bates F.S. Rheology of ordered and disordered symmetric poly(ethylenepropylene)-poly(ethylethylene) diblock copolymers. Macromolecules 23 (1990) 2329-2338
11. Bates F.S., Rosedale J.H., and Fredrickson G.H. Fluctuation effects in a symmetric diblock copolymer near the order-disorder transition. J Chem Phys 92 10 (1990) 6255-6270
12. Zhang Y., and Wiesner U. Rheology of lamellar polystyrene-block-polyisoprene diblock copolymers. Macromol Chem Phys 199 (1998) 1771-1784
13. Kossuth M.B., Morse D.C., and Bates F.S. Viscoelastic behaviour of cubic phases in block copolymer melts. J Rheol 43 1 (1999) 167-196
14. Wiesner U. Lamellar diblock copolymers under large amplitude oscillatory shear flow: order and dynamics. Macromol Chem Phys 198 (1997) 3319-3352
15. Hamley I.W. Structure and flow behaviour of block copolymers. J Phys: Condens Matter 13 (2001) R643-R671
16. Kotaka T., Okamoto M., Kojima A., Kwon Y.K., and Nojima S. Elongational flow-induced morphology change of block copolymers. 2. A polystyrene-block-poly(ethylene butylenes)-block-polystyrene triblock copolymer with cylindrical microdomains. Polymer 42 (2001) 3223-3231
17. Mortensen K., Theunissen E., Kleppinger R., Almdal K., and Reynaers H. Shear-induced morphologies of cubic ordered block copolymer micellar networks studied by in situ small-angle neutron scattering and rheology. Macromolecules 35 (2002) 7773-7781
18. Sebastian J.M., Lai C., Graessley W.W., Register R.A., and Marchand G.R. Steady-shear rheology of block copolymer melts: zero-shear viscosity and shear disordering in body-centered-cubic systems. Macromolecules 35 (2002) 2700-2706
19. Keller A., Pedemonte E., and Wilmouth F.M. Macro-lattice from segregated amorphous phases of a three block copolymer. Nature 225 5232 (1970) 538-539
20. Leist H., Geiger K., and Wiesner U. Orientation flip of lamellar polystyrene-polyisoprene diblock copolymers under extrusion. Macromolecules 32 (1999) 1315-1317
21. Geiger K., Knoll K., and Langela M. Microstructure and rheological properties of triblock copolymers under extrusion conditions. Rheol Acta 41 (2002) 345-355
22. Phatak A., Macosko C.W., Bates F.S., and Hahn S.F. Extrusion of triblock and pentablock copolymers: evolution of bulk and surface morphology. J Rheol 49 1 (2005) 197-214
23. Kim J.K., Jung D.S., and Kim J. Morphology and rheological behaviour of mixtures of poly(styrene-b-ethylene-co-butylene-styrene) block copolymer and poly(2,6-dimethyl-1,4-phenylene ether). Polymer 34 22 (1993) 4613-4624
24. Bates F.S. Polymer-polymer phase behaviour. Science 251 (1991) 898-904
25. Ryu C.Y., Lee M.S., Hajduk D.A., and Lodge T.P. Structure and viscoelasticity of matched asymmetric diblock and triblock copolymers in the cylinder and sphere microstructures. Polym Sci, Polym Phys 35 (1997) 2811-2823
26. Brown K., Hooker J.C., and Creton C. Micromechanisms of tack of soft adhesives based on styrenic block copolymers. Macromol Mater Eng 287 (2002) 163-179
27. Fernández I., Santamaría A., Muñoz M.E., and Castell P. A rheological analysis of interactions in phenoxy/organoclay nanocomposites. Euro Polym J 43 (2007) 3171-3176
28. Ferry J.D. Viscoelastic properties of polymers. 3rd ed. (1980), Wiley, New York p. 47
29. Garcia Franco C.A., Harrington B.A., and Lohse D.J. Effect of shot-chain branching on the rheology of polyolefins. Macromolecules 39 (2006) 2710-2717
30. Somma E., Valentino O., Titomanlio G., and Lanniruberto G. Parallel superposition in entangled polydisperse polymer melts: experimental and theory. J Rheol 51 5 (2007) 987-1005
31. Zhang Y., Wiesner U., Yang Y., Pakula T., and Spiess H.W. Annealing effects on orientation in dynamically sheared diblock copolymers. Macromolecules 29 (1996) 5427-5431
32. Maring D., and Wiesner U. Threshold strain value for perpendicular orientation in dynamically sheared diblock copolymers. Macromolecules 30 (1997) 660-662
33. Langela M., Wiesner U., Spiess W., and Wilhelm M. Microphase reorientation in block copolymer melts as detected via FT rheology and 2D SAXS. Macromolecules 35 (2002) 3198-3204
34. Oelschlaeger C., Gutmann J.S., Wolkenhauer M., Spiess H.W., Knoll K., and Wilhelm M. Kinetics of shear microphase orientation and reorientation in lamellar diblock and triblock copolymer melts as detected via FT-rheology and 2D-SAXS. Macromol Chem Phys 208 (2007) 1719-1729
35. Giannelis E.P., Krishnamoorti R., and Manias E. Polymer-silicate nanocomposites: model systems for confined polymers and polymer brushes. Adv Polym Sci 138 (1999) 107-147
36. Hutton J.F. Fracture of liquids in shear. Nature 200 (1963) 646-648
37. Hutton J.F. The fracture of liquids in shear: the effects of size and shape. Proc R soc Lond A 287 (1965) 222-239
38. Tanner R.I., and Keentok M. Shear fracture in cone-plate rheometry. J Rheol 27 1 (1983) 47-57
39. 2 control the onset of edge fracture?. Rheol Acta 31 (1992) 306-308
40. Magda J.J., and Baek S.G. Concentrated entangled and semidilute entangled polystyrene solutions and the second normal stress difference. Polymer 36 6 (1994) 1187-1194
41. Aral B.K., and Kalyon D.M. Effects of temperature and surface roughness on time-dependent development of wall slip in steady torsional flow of concentrated suspensions. J Rheol 38 4 (1994) 957-972
42. Keentok M., and Xue S.C. Edge fracture in cone-plate and parallel plate flows. Rheol Acta 38 (1999) 321-348
43. Chan T.W., and Baird D.G. An evaluation of a squeeze flow rheometer for the rheological characterization of a filled polymer with a yield stress. Rheol Acta 41 (2002) 245-256
44. Schweizer T.h. Comparing cone-partitioned plate and cone-standard plate shear rheometry of a polystyrene melt. J Rheol 47 4 (2003) 1071-1085
45. Inn Y.W., Wissbrun K.F., and Denn M.M. Effect of edge fracture on constant torque rheometry of entangled polymer solutions. Macromolecules 38 (2005) 9385-9388
46. Fernández M., Santamaría A., Muñoz-Escalona A., and Méndez L. A striking hydrodynamic phenomenon: split of a polymer melt in capillary flow. J Rheol 45 2 (2001) 595-602
47. Zhu Z. Wall slip and extrudate instability of 4-arm star polybutadienes in capillary flow. Rheol Acta 43 (2004) 373-382
48. Santanach Carreras E., El Kissi N., and Piau J.M. Exit delayed transversal primary cracks and longitudinal secondary cracks: extrudate splitting and continuous peeling. Block copolymer extrusion distortions. J Non-Newt Fluid Mech 131 (2005) 1-21
49. Piau J.M., Santanach Carreras E., and Suarez Dabo E. Continuous peeling extrusion of SEBS block copolymers. J Non-Newt Fluid Mech 147 (2007) 139-148
50. Wang S.Q. A coherent description of nonlinear flow behaviour of entangled polymers as related to processing and numerical simulations. Macromol Mater Eng 292 (2007) 15-22