Influence of subphase viscosity on langmuir monolayer flow

Langmuir

Volumn 14, Issue 8, 1998, Pages 1963-1966

  Turati, V ^a   Ferrari, C ^a   Relini, A ^a   Rolandi, R ^a  

^a UNIVERSITY OF GENOA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

CHANNEL FLOW; FLOW MEASUREMENT; MATHEMATICAL MODELS; PRESSURE EFFECTS; SURFACE PROPERTIES; VISCOSITY; VISCOUS FLOW;

LANGMUIR MONOLAYERS;

MONOLAYERS;

EID: 0032048861     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (18)

1. McConnell, H. M. Annu. Rev. Phys. Chem. 1991, 42, 171. Knobler, C. M.; Desai, R. Annu. Rev. Phys. Chem. 1992, 43, 207. Möhwald, H. Rep. Prog. Phys. 1993, 56, 653. Riviére, S.; Hénon, S.; Meunier, J.; Schwartz, D. K.; Tsao, M.-W.; Knobler, C. M. J. Chem. Phys. 1994, 101, 10045.
2. McConnell, H. M. Annu. Rev. Phys. Chem. 1991, 42, 171. Knobler, C. M.; Desai, R. Annu. Rev. Phys. Chem. 1992, 43, 207. Möhwald, H. Rep. Prog. Phys. 1993, 56, 653. Riviére, S.; Hénon, S.; Meunier, J.; Schwartz, D. K.; Tsao, M.-W.; Knobler, C. M. J. Chem. Phys. 1994, 101, 10045.
3. McConnell, H. M. Annu. Rev. Phys. Chem. 1991, 42, 171. Knobler, C. M.; Desai, R. Annu. Rev. Phys. Chem. 1992, 43, 207. Möhwald, H. Rep. Prog. Phys. 1993, 56, 653. Riviére, S.; Hénon, S.; Meunier, J.; Schwartz, D. K.; Tsao, M.-W.; Knobler, C. M. J. Chem. Phys. 1994, 101, 10045.
4. McConnell, H. M. Annu. Rev. Phys. Chem. 1991, 42, 171. Knobler, C. M.; Desai, R. Annu. Rev. Phys. Chem. 1992, 43, 207. Möhwald, H. Rep. Prog. Phys. 1993, 56, 653. Riviére, S.; Hénon, S.; Meunier, J.; Schwartz, D. K.; Tsao, M.-W.; Knobler, C. M. J. Chem. Phys. 1994, 101, 10045.
5. Joly, M. M. J. Phys. Rad. 1937, 8, 471.
6. Joly, M. M. J. Phys. Rad. 1938, 9, 345.
7. Washburn, E. R.; Wakeham, H. R. R. J. Am. Chem. Soc. 1938, 60, 1204.
8. Schwartz, D. K.; Knobler, C. M.; Bruinsma, R. Phys. Rev. Lett. 1994, 73, 2841.
9. Sacchetti, M.; Yu, H.; Zografi, G. J. Chem. Phys. 1993, 99, 563. In our case the limit h ≫ D was fulfilled by using a channel 4.5 cm deep, positioned in the trough well.
10. Harkins, W. D.; Kirkwood, J. G. Nature 1938, 41, 38. Harkins, W. D.; Kirkwood, J. G. J. Chem. Phys. 1938, 6, 53.
11. Harkins, W. D.; Kirkwood, J. G. Nature 1938, 41, 38. Harkins, W. D.; Kirkwood, J. G. J. Chem. Phys. 1938, 6, 53.
12. Stone, H. A. Phys. Fluids 1995, 7, 2931.
13. Equation 6 was obtained by integrating the velocity profile given in ref 5. It is worth noting that eq 6 cannot be obtained by setting negligible surface viscosity in eq 4, since Joly's assumption (eq 3) is an approximation which is not valid when the monolayer viscous stress is neglected. In fact, in this case it leads to a solution (u = constant) not fulfilling the boundary conditions.
14. 3 and π/8) since they correspond to different channel geometries and are obtained under different boundary conditions.
15. -2 (Handbook of Chemistry and Physics; CRC Press: Boca Raton, FL, 1992).
16. Guyon, E.; Hulin, J.-P.; Petit, L. Hydrodynamique physique; InterEditions/Editions du CNRS: Paris, 1991; p 120.
17. Davies J. T.; Rideal, E. K. Interfacial Phenomena; Academic Press: New York, 1961; p 37.
18. A rough evaluation provided a contact angle around 95° in the presence of the monolayer. This value was obtained by measuring the difference between the water level inside and outside the channel for different channel widths.