The Study of the Structure of a Microemulsion by Small Angle Neutron Scattering: the Effect of Telechelic Polymer on the Bending Elasticity of the Surfactant Film
(*) Corresponding author
DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)
Abstract
Oil-in-water microemulsions of the charged system CPCl in presence of telechelic polymers (polyethylene oxide (PEO) grafted at one extremity with a C 12 H25 chain) have been studied by small angle neutron scattering (SANS). From these experiments, the elastic properties of the surfactant film can be derived. By adding of telechelic polymers on the droplets, we show that the mean radius Rm decreases whereas the bending elasticity k~ remains approximately constant.
Copyright © 2014 Praise Worthy Prize - All rights reserved.
Keywords
Full Text:
PDFReferences
R. Ahfir, A. Azougarh, M. Benhamou, M. Filali, Study of the Colloidal Interactions Between Microemulsion Nanodroplets in the Presence of Telechelic Polymers: Theory and Experiment, (2014) International Review of Physics (IREPHY), 8 (3), pp. 74-82.
Talha, L., Ahfir, R., Azougarh, A., Filali, M., Relaxation Modes in a TX100 Microemulsion System, (2014) International Review of Physics (IREPHY), 8 (4), pp. 123-131.
L.M Prince., Microemulsions, Theory and Practice; (Ed; Academic Press / NewYork 1977)
W.Helfrich, Elastic Properties of Lipid Bilayers—Theory and Possible Experiments,.Naturforsch.Z, (1973), C28, 693-703
H.Hellay..; B.P. Binks.; Y.Hendrikx..; L.T.Lee..; J.Meunier, Properties of surfactant monolayers in relation to microemulsion phase behavior, J,.Adv.Colloid Interface Sci. (1994) 9, 85.
http://dx.doi.org/10.1016/0001-8686(94)80013-8
S.A.Safran.; T.Tlusty.Ber.Bunsenges, Curvature Elasticity Models of Microemulsions, Phys.Chem.(1996), 100, 252.
http://dx.doi.org/10.1002/bbpc.19961000311
I.Szleifer, D.Kramer., A.Ben-Shaul, W.M.Gelbart, S.A.Safran., Molecular Theory of Curvature Elasticity in Surfactant Films, J.Chem.Phys (1990), 92, 6800.
http://dx.doi.org/10.1063/1.458267
M.Winterhalter; W.Helfrich, Bending elasticity of electrically charged bilayers, J.Phys.Chem.(1992), 96, 327.
http://dx.doi.org/10.1021/j100180a060
M.Gradzielski, D.Langevin, B.Farago., Experimental investigation of the structure of nonionic microemulsions and their relation to the bending elasticity of the amphiphilic film, Phys.Rev.E . (1996), 53, 3900
http://dx.doi.org/10.1103/physreve.53.3900
J.N.Israelachvili., “Intermolecular and Surface Forces,( 2nd edition, Academic Press, London, 1991)
http://dx.doi.org/10.1080/01932699208943350
W.Z.Helfrich, Steric interaction of fluid membranes in multilayer systems Natureforsch (1978), 33a, 305.
E.Sackmann, in “The Structure and Dynamics of Membranes”, (edited by Lipowsky.R. and Sackmann.E., Elsevier, Amsterdam, 1995, p. 213304; P.F.F. Almeida andW.L.C. Vaz, ibid., pp. 305357).
T.AWitten, P.A.Pincus, Colloid stabilization by long grafted polymers Macromolecules,(1986), 19, 2509. More development on the subject can be found in: M.Badia., M.Benhamou., A.Derouiche.A., J.L. Bretonnet. Determination of the amplitude of the repulsive pair potential between particles clothed by end grafted polymers, Colloid & Polym. Sci. (2001), 279, 763.
http://dx.doi.org/10.1007/s003960100491
S.T.Milner, S.A.Safran, Dynamical fluctuations of droplet microemulsions and vesicles, Phys Rev. (1987), A36, 4371
http://dx.doi.org/10.1103/physreva.36.4371
P.J.Flory, Principles of Polymer Chemistry, (Cornell University Press, Ithaca, 1953); also P.-G. de Gennes., Scaling Concept in Polymer Physics, (Cornell University Press, 1979).
S.A.Safran, Structure and Dynamics of Strongly interacting Colloids and Supramolecular Aggregates in Solution”, ( Series C: Mathematical and Physical Sciences, Chen, S.H; Huang, J.S; Tartaglia,P.D; Ed; Kluwer, Dortrecht. 1992, Vol.369 of NATO Advanced Study Institute).
T.Bickel., (2001) Doctorate Thesis, Louis Pasteur University , Strasbourg I, France,
Safran. S.A, Fluctuations of spherical microemulsions, J.Chem.Phys. (1983), 78, 2073.
http://dx.doi.org/10.1063/1.444955
Kaczmarski.J.P, Glass.J.E, synthesis and solution properties of hydrophobically-modified ethoxilated urethanes with variable oxyethylene spacer lenths, Macromolecules (1993), 26, 5149.
http://dx.doi.org/10.1021/ma00071a026
O.Vorobyova., A.Yecta., A.Winnik., W.Lau., Fluorescent probe studies of the association in an aqueous solution of a hydrophobically modified poly(ethylene oxide), Macromolecules (1998), 31, 1, 8998.
http://dx.doi.org/10.1021/ma980819l
P.Hartmann, M.Viguier, A.Collet, D.J.Calvet, Synthesis and characterization of model fluoroacylated poly(ethylene oxide), J.Fluorine Chem (1999), 95,145-151
http://dx.doi.org/10.1016/s0022-1139(99)00017-2
S.A.Safran, L.E.Turkevich, Phase diagrams of microemulsions, Phys.Rev.Lett. (1983), 50, 1930.
http://dx.doi.org/10.1103/physrevlett.50.1930
J. Appell, C. Ligoure, G. Porte, Bending elasticity of a curved amphiphilic film decorated with anchored copolymers: a small angle neutron scattering study , J. Stat. Mech. (2004) .
http://dx.doi.org/10.1088/1742-5468/2004/08/p08002
D.Lairez.D, Résolution d'un spectromètre de diffusion de neutrons aux petits angles, (1999), J.Physique Coll. IV 91)
http://dx.doi.org/10.1051/jp4:200300010
B.Cabane,R.Zana.R. Nonionic Surfactants, (Ed ; Marcel Dekker Pub: New York, 1987, p57)
M.Filali, M.J.Ouazzani, E.Michel, R.Aznar, G.Porte, J.Appell, Robust phase behavior of model transient networks, J.Phys.Chem. B (2001), 105, 10528−10535.
http://dx.doi.org/10.1021/jp0113073
M.Filali, R.Aznar, M.Svenson, G.Porte, J.Appell, Swollen micelles plus hydrophobically modified hydrosoluble polymers in aqueous solutions : decoration versus bridging. A small angle neutron scattering study, J.Phys.Chem, (1999),103, 34,7293-7301
http://dx.doi.org/10.1021/jp990980d
H.Bagger-Jörgensen, U.Olsson, K.Mortensen, Stable, metastable and unstable oil-in-water droplets, Langmuir, (1997),13, 1413- 1421
http://dx.doi.org/10.1007/bfb0111022
G.Porte, and C.Ligoure , Mixed amphiphilic bilayers: bending elasticity and formation of vesicles, (1995) J.Chem.Phys. 102, 4290.
http://dx.doi.org/10.1063/1.469476
S.A.Safran, Saddle-Splay modulus and the stability of spherical microemulsion, Phys Rev A (1991), 43, 2903
http://dx.doi.org/10.1103/physreva.43.2903
D.Espinat, Ultrasmall-and small-angles X-ray scattering of smectite clay suspensions, Rev Inst Fr Pet (1990), 45, 1.
Refbacks
- There are currently no refbacks.
Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize