Mechanical properties of monodomain nematic side-chain liquid-crystalline elastomers with homeotropic and in-plane orientation of the director

European Physical Journal E

Volumn 34, Issue 7, 2011, Pages

  Rogez, D ^a   Martinoty, P ^a  

^a INSTITUT CHARLES SADRON   (France)

Author keywords

[No Author keywords available]

Indexed keywords

ELASTIC BEHAVIOR; GAUSSIANS; HOMEOTROPIC; IN-PLANE ORIENTATION; LIQUID-CRYSTAL ELASTOMERS; LIQUID-CRYSTALLINE ELASTOMERS; MECHANICAL STRETCHING; MONODOMAINS; NEOCLASSICAL MODEL; NON-GAUSSIAN; PREPARATION PROCEDURES; RUBBER ELASTICITY; SHEAR ANISOTROPY; SHEAR MEASUREMENTS; SIDE CHAIN LIQUID CRYSTAL POLYMERS; SIDE-CHAINS; UV IRRADIATION;

CRYSTAL ORIENTATION; ELASTICITY; ELASTOMERS; ELECTRIC PROPERTIES; EXPERIMENTS; GAUSSIAN DISTRIBUTION; GAUSSIAN NOISE (ELECTRONIC); LIQUIDS; MAGNETIC FIELDS; PLASTICS; STRESS-STRAIN CURVES;

RUBBER;

ELASTOMER; LIQUID CRYSTAL POLYMER; POLYMER; RUBBER;

ARTICLE; BIOPHYSICS; CHEMICAL MODEL; CHEMISTRY; ELASTICITY; MECHANICAL STRESS; METHODOLOGY; SHEAR STRENGTH; THERMODYNAMICS;

BIOPHYSICS; ELASTICITY; ELASTOMERS; MODELS, CHEMICAL; POLYMERS; RUBBER; SHEAR STRENGTH; STRESS, MECHANICAL; THERMODYNAMICS;

EID: 80052682961     PISSN: 12928941     EISSN: 1292895X     Source Type: Journal    
DOI: 10.1140/epje/i2011-11069-8     Document Type: Article

References (50)

1. J. Küpfer, H. Finkelmann, Macromol. Chem. Phys. 195, 1353 (1994).
2. M. Warner, E.M. Terentjev, Liquid Crystal Elastomers (Oxford University Press, Oxford, 2003).
3. H.R. Brand, H. Pleiner, P. Martinoty, Soft Matter 2, 182 (2006).
4. P.G. de Gennes, in Liquid Crystals of One- and Two-Dimensional Order, edited by W. Helfrich, G. Heppke (Springer, Berlin, 1980) p. 231.
5. M. Warner, P. Bladon, E.M. Terentjev, J. Phys. II 4, 93 (1994).
6. P. Olmsted, J. Phys. II 4, 2215 (1994).
7. L. Golubovic, T.C. Lubensky, Phys. Rev. Lett. 63, 1082 (1989).
8. G. Verwey, M. Warner, Macromolecules 28, 4303 (1995).
9. M. Warner, J. Mech. Phys. Solids 47, 1355 (1999).
10. G. Verwey, M. Warner, E.M. Terentjev, J. Phys. II 6, 1273 (1996).
11. G. Verwey, M. Warner, Macromolecules 30, 4189 (1997).
12. G. Verwey, M. Warner, Macromolecules 30, 4196 (1997).
13. P. Bladon, E.M. Terentjev, M. Warner, Phys. Rev. E 47, R3838 (1993).
14. S. Conti, A. DeSimone, G. Dolzmann, Phys. Rev. E 66, 061710 (2002).
15. E.M. Terentjev, M. Warner, Eur. Phys. J. E 4, 343 (2001).
16. S.M. Clarke, A.R. Tajbakhsh, E.M. Terentjev, M. Warner, Phys. Rev. Lett. 86, 4044 (2001).
17. P. Martinoty, P. Stein, H. Finkelmann, H. Pleiner, H.R. Brand, Eur. Phys. J. E 14, 311 (2004).
18. D. Rogez, G. Francius, H. Finkelmann, P. Martinoty, Eur. Phys. J. E 20, 369 (2006).
19. F. Ye, R. Mukhopadhyay, O. Stenull, T.C. Lubensky, Phys. Rev. Lett. 98, 147801 (2007).
20. J.S. Biggins, E.M. Terentjev, M. Warner, Phys. Rev. E 78, 041704 (2008).
21. A.M. Menzel, H. Pleiner, H.R. Brand, Eur. Phys. J. E 30, 371 (2009).
22. J.-L. Gallani, L. Hilliou, P. Martinoty, F. Doublet, M. Mauzac, J. Phys. II 6, 443 (1996).
23. J. Weilepp, P. Stein, N. Aßfalg, H. Finkelmann, P. Martinoty, H.R. Brand, Europhys. Lett. 47, 508 (1999).
24. J. Weilepp, J.J. Zanna, N. Aßfalg, P. Stein, L. Hilliou, M. Mauzac, H. Finkelmann, H.R. Brand, P. Martinoty, Macromolecules 32, 4566 (1999).
25. P. Stein, N. Aßfalg, H. Finkelmann, P. Martinoty, Eur. Phys. J. E 4, 255 (2001).
26. J.J. Zanna, P. Stein, J.D. Marty, M. Mauzac, P. Martinoty, Macromolecules 35, 5459 (2003).
27. D. Rogez, H. Brandt, H. Finkelmann, P. Martinoty, Macromol. Chem. Phys. 207, 735 (2006).
28. J.L. Gallani, L. Hilliou, P. Martinoty, P. Keller, Phys. Rev. Lett. 72, 2109 (1994).
29. P. Martinoty, L. Hilliou, M. Mauzac, L. Benguigui, D. Collin, Macromolecules 32, 1746 (1999).
30. D. Collin, P. Martinoty, Physica A 320, 235 (2003).
31. D. Collin, P. Martinoty, Eur. Phys. J. E 19, 87 (2006).
32. O. Pozo, D. Collin, H. Finkelmann, D. Rogez, P. Martinoty, Phys. Rev. E 80, 031801 (2009).
33. D. Collin, G.K. Auernhammer, O. Gavat, P. Martinoty, H.R. Brand, Macromol. Rapid Commun. 24, 737 (2003).
34. G.K. Auernhammer, D. Collin, P. Martinoty, J. Chem. Phys. 124, 204907 (2006).
35. D. Collin, P. Lavalle, J. Mendez Garza, J.C. Voegel, P. Schaaf, P. Martinoty, Macromolecules 37, 10195 (2004).
36. F. Brömmel, H. Finkelmann, to be published.
37. A. Lebar, Z. Kutnjak, S. Zumer, H. Finkelmann, A. Sanchez-Ferrer, B. Zalar, Phys. Rev. Lett. 94, 197801 (2005).
38. P.G. de Gennes, C. R. Acad. Sci. (Paris), Sér. B 281, 101 (1975).
39. A.M. Menzel, H. Pleiner, H.R. Brand, J. Appl. Phys. 105, 013503 (2009).
40. The chain anisotropy r of the samples prepared by E- or H-field is much smaller than the chain anisotropy of the usual samples prepared by mechanical stretching, and is very similar to the chain anisotropy of the sample oriented by wall effect [46]. F. Brömmel, private communication.
41. L.R.G. Treloar, The Physics of Rubber Elasticity (Clarendon Press, Oxford, 1949).
42. The stress-strain measurements were performed by F. Brömmel.
43. r = 1.26. F. Brömmel, private communication.
44. H. Finkelmann, private communication.
45. 1 expected by the referee. The discontinuity in slope is therefore not required for the observation of the soft mode.
46. K. Urayama, R. Mashita, I. Kobayashi, T. Takigawa, Macromolecules 40, 7765 (2007).
47. A. Petelin, M. Copic, Phys. Rev. Lett. 103, 077801 (2009).
48. A. Petelin, M. Copic, Phys. Rev. E 82, 011703 (2010).
49. 1 < 1.07 at T = 75 ° C and T = 60 ° C) is deduced via eq. (3) from the error on α ((α = 3.9±0.8)% at T = 75 ° C, α = (6.3±1.2)% at T = 60 °C).
50. 1< 1.092) is deduced via eq. (3) from the error on α (α = (11.7 ± 1.2)%).