화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.26, No.3, 263-275, August, 2014
Export Citation
Morphology and elasticity of polystyrene-block-polyisoprene diblock copolymers in the melt
Taida Gil Haenelt1, 2, Prokopios Georgopanos1, Clarissa Abetz1, Sofia Rangou1, Doreen Alisch2, Andreas Meyer2, Ulrich A. Handge1, †, and Volker Abetz1, 2
  • 1Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
  • 2Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
E-mail:
The influence of morphology on the viscoelastic properties of melts of microphase-separated polystyreneblock-polyisoprene (PS-b-PI) diblock copolymers was investigated in oscillatory shear and creep recovery experiments. By means of anionic polymerization, three PS-b-PI diblock copolymers with a narrow molecular weight distribution and different types of morphology (spherical, cylindrical and lamellar microstructure) were prepared. Linear viscoelastic shear oscillations and creep recovery experiments in shear were performed in order to determine the elastic and viscous properties of the diblock copolymers in the melt at small and large time scales. Our analysis reveals that melts of diblock copolymers are characterized by a pronounced elastic behavior leading to a relatively large recoverable deformation in creep recovery experiments. The elasticity of the diblock copolymers is also revealed by the appearance of the creep-ringing effect. Morphological investigations were carried out to establish relations between microstructure and melt elasticity. Since ordering phenomena take place in melts of diblock copolymers until an equilibrium morphology is achieved, the storage modulus G' of diblock copolymer melts increases with time up to a steady-state value.
Keywords:Diblock copolymers;microphase separation;shear rheology;creep recovery experiments;elasticity
  1. Abetz V, Boschetti-de-Fierro A, Polymer science: a comprehensive reference, 7, 3 (2012)
  2. Adams JL, Quiram DJ, Graessley WW, Register RA, Marchand GR, Macromolecules, 29(8), 2929 (1996)
  3. Bates FS, Fredrickson GH, Ann. Rev. Phys. Chem., 41, 525 (1990)
  4. Bates FS, Fredrickson GH, Phys.Today, 52, 32 (1999)
  5. Breiner U, Krappe U, Jakob T, Abetz V, Stadler R, Polym. Bull., 40(2-3), 219 (1998)
  6. Buzza DMA, Fzea AH, Allgaier JB, Young RN, Hawkins RJ, Hamley IW, McLeish TCB, Lodge TP, Macromolecules, 33(22), 8399 (2000)
  7. Cogswell FN, Polymer Melt Rheology: A Guide for Industrial Practice, Elsevier Science (1981)
  8. Ewoldt RH, McKinley GH, Rheol. Bull., 76, 22 (2007)
  9. Ferry JD, Viscoelastic Properties of Polymers, Wiley (1980)
  10. Fetters LJ, Lohse DJ, Milner ST, Graessley WW, Macromolecules, 32(20), 6847 (1999)
  11. Forster S, Khandpur AK, Zhao J, Bates FS, Hamley IW, Ryan AJ, Bras W, Macromolecules, 27(23), 6922 (1994)
  12. Graessley WW, J. Polym. Sci. J. Polym. Sci., 18, 27 (1980)
  13. Han CD, Baek DM, Kim JK, Ogawa T, Sakamoto N, Hashimoto T, Macromolecules, 28(14), 5043 (1995)
  14. Harrison C, Adamson DH, Cheng Z, Sebastian JM, Sethuraman S, Huse DA, Register RA, Chaikin PM, Science, 290, 1558 (2000)
  15. Hashimoto T, Kowsaka K, Shibayama M, Kawai H, Macromolecules, 19, 754 (1986)
  16. Helfand E, Wasserman ZR, Macromolecules, 9, 879 (1976)
  17. Helfand E, Wasserman ZR, Macromolecules, 11, 960 (1978)
  18. Helfand E, Wasserman ZR, Macromolecules, 13, 994 (1980)
  19. Honerkamp J, Weese J, Rheol. Acta, 32, 57 (1993)
  20. Jung A, Rangouv S, Abetz C, Filiz V, Abetz V, Macromol. Mater. Eng., 297, 790 (2012)
  21. Kaneko T, Suda K, Satoh K, Kamigaito M, Kato T, Ono T, Nakamura E, Nishi T, Jinnai H, Macromol. Symp., 242, 80 (2006)
  22. Keller A, Pedemonte E, Willmouth FM, Kolloid-Z.u.Z.Polymere, 238, 385 (1970)
  23. Khandpur AK, Forster S, Bates FS, Hamley IW, Ryan AJ, Bras W, Almdal K, Mortensen K, Macromolecules, 28(26), 8796 (1995)
  24. Koppi KA, Tirrell M, Bates FS, Almdal K, Colby RH, J. Phys. II France, 2, 1941 (1992)
  25. Krappe U, Stadler R, Voigtmartin I, Macromolecules, 28(13), 4558 (1995)
  26. cKryder MH, Thin Solid Films, 216, 174 (1992)
  27. Larson RG, Winey KI, Patel SS, Watanabe H, Bruinsma Rv, Rheol. Acta, 32, 245 (1993)
  28. Leibler L, Macromolecules, 13, 1602 (1980)
  29. Matsen MW, Bates FS, J. Chem. Phys., 106(6), 2436 (1997)
  30. Mori K, Hasegawa H, Hashimoto T, Polymer J., 17, 799 (1985)
  31. Morrison FA, Winter HH, Macromolecules, 22, 3533 (1989)
  32. Munstedt H, J. Rheol., 58, 565 (2014)
  33. Muenstedt H, Katsikis N, Kaschta J, Macromolecules, 41(24), 9777 (2008)
  34. Pakula T, Saijo K, Kawai H, Hashimoto T, Macromolecules, 18, 1294 (1985)
  35. Park C, Yoon J, Thomas EL, Polymer, 44(22), 6725 (2003)
  36. Patel SS, Larson RG, Winey KI, Watanabe H, Macromolecules, 28(12), 4313 (1995)
  37. Rieger J, J. Therm. Anal. Calorim., 46, 965 (1996)
  38. Ryu CY, Lee MS, Hajduk DA, Lodge TP, J. Polym. Sci. B: Polym. Phys., 35(17), 2811 (1997)
  39. Scott DB, Waddon AJ, Lin YG, Karasz FE, Winter HH, Macromolecules, 25, 4175 (1992)
  40. Sebastian JM, Lai C, Graessley WW, Register RA, Macromolecules, 35(7), 2707 (2002)
  41. Sebastian JM, Lai C, Graessley WW, Register RA, Marchand GR, Macromolecules, 35(7), 2700 (2002)
  42. Winter HH, Scott DB, Gronski W, Okamoto S, Hashimoto T, Macromolecules, 26(26), 7236 (1993)
  43. Zhang Y, Wiesner U, Macromol. Chem. and Phys., 199, 1771 (1998)
  44. Zhao J, Majumdar B, Schulz MF, Bates FS, Almdal K, Mortensen K, Hajduk DA, Gruner SM, Macromolecules, 29(4), 1204 (1996)
  45. Zott H, Heusinger H, Macromolecules, 8, 182 (1975)