Relaxation phenomena at the air-water interface with surfactants

• Autorzy: Pawelec M. K. , Sosnowski T. R.
• Konferencja: Second International Conference on Engineering Rheology ICER 2003
• Języki publikacji: EN

Abstrakty

EN

Work is focused on experimental determination of dynamic mechanical properties (i.e. compressibility and relaxation parameters) of the air-water interface during compression in the presence of DPPC monolayer. The surface dynamics was studied with the Langmuir-Wilhelmy balance in several temperatures. The influence of another surfactant (CTAB) present in the aqueous subphase on the surface with DPPC was also investigated. Discussion of the results is based on the concepts of surface rheology and physical chemistry of the interface.

Słowa kluczowe

EN

surface rheology; compressibility; relaxation; DPPC; CTAB

PL

reologia; ściśliwość; powierzchnia

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2003
• Tom: Vol. 8, no spec.
• Strony: 295--300
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Pawelec M. K.

• Department of Chemical and Process Engineering, Warsaw University of Technology Waryńskiego 1, 00-645 Warsaw, POLAND

autor

Sosnowski T. R.

• Centre of Excellence for Complex System Research, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, POLAND

Bibliografia

• [1] Gaines G.L. (1966): Insoluble Monolayers at Liquid-gas lnterfaces. - New York: Interscience Publishers.
• [2] Goerke J. (1992): Surfactant and Lung Mechanics. In: Pulmonary surfactant - from molecular biology to clinical practice (B. Robertson, L.M.G. Van Golde and J.J. Batenburg, Eds.). - Amsterdam: Elsevier.
• [3] Notter R.H., Taubold R. and Mavis R.D. (1982): Hysteresis in saturated phospholipid and its potential relevance in vivo. - Exp. Lung Research, vol.3, pp. 109-127.
• [4] Pawelec M.K. (2002): Rheological studies of a gas-liquid interface. - M.Sc. Thesis, Warsaw University of Technology (in Polish).
• [5] Pawelec M.K. and Sosnowski T.R. (2003): Langmuir-Wilhelmy balance studies of DPPC and CTAB films. - Proceedings of 2nd SURUZ Int. Conference, Polanica Zdrój, May 20-23, (in press).
• [6] Podgórski A. and Gradoń L. (1993): An improved mathematical model of alveolar self-cleansing of pulmonary alveoli. - Ann. Occup. Hyg., vol.37, pp.347-365.
• [7] Sosnowski T.R., Gradoń L. and Podgórski A. (2000): The specificity of transport phenomena in liquid systems with surfactants. - Inż. Aparat. Chem., vol.39(3s), pp. 130-131 (in Polish).
• [8] Sosnowski T.R. (2003): Rheological analysis of dynamic processes at a gas-liquid interface. I. Theory. - Proc. Chem. Eng., vol.24, pp.93-101 (in Polish).
• [9] Van den Tempel M. (1977): Surface rheology. - J. Non-Newtonian Fluid Mech., vol.2, pp.205-219.