Collapse of polymer brushes grafted onto planar ... - Wageningen UR

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WETTING OF AN ANNEALED POLYELECTROLYTE BRUSH, A NUMERICAL SCF STUDY F.A.M. Leermakers 1) , A. Mercurieva 2) , E.B. Zhulina 2) , T.M. Birshtein 2) 1) Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands 2) Institute of Macromolecular Compounds of the Russian Academy of Sciences, 199004, St. Petersburg, Russia email: frans@fenk.wau.nl ABSTRACT In this poster we will discuss the wetting properties of an annealed polyelectrolyte brush in an oil-salted water system. The ionic strength is chosen as the control parameter. The salted water interacts with the solid substrate as well as with the annealed brush. The first type of interaction has a short-range character; the other one is long range (at least proportional to the brush height). One can envision wetting transitions due to both interactions. The two wetting transitions appear to be of the first-order type and interfere with each other. The pre-wetting lines associated to these transitions cross and a triple point is found. At this triple point three (microscopic) film thicknesses coexist. There can only be one wetting transition and therefore one part of one of the pre-wetting lines is meta-stable in between a hidden wetting transition and the triple point. The other pre-wetting line is attached to the true wetting transition and has a kink at the triple point.
MOLECULAR SCF MODELLING OF PORES IN LIPID BILAYERS M.A.C. Roelen, F.A.M. Leermakers, M.M.A.E. Claessens, M.A. Cohen Stuart Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands email: frans@fenk.wau.nl ABSTRACT The stability of bilayer systems, e.g. lipid vesicles, under tension is determined by the ease with which rupture nuclei form. A molecular self-consistent-field theory with the discretisation scheme of Scheutjens and Fleer is applied to obtain structural and thermodynamical information on perforated (flat) bilayers. It is found that the critical tension on the bilayer for the long wavelength perturbation is much higher than the tension needed to rupture the bilayer if a small spherical hole is allowed for.
Page 1 and 2: Frontis - Wageningen International
Page 3 and 4: Prof. dr. Hans Fraaije Leiden Unive
Page 5 and 6: Prof. Ullrich Steiner University of
Page 7 and 8: Preface Self-consistent field model
Page 9 and 10: covered by polymers), and R. Rajago
Page 11: FIRST-ORDER WETTING TRANSITION AT F
Page 15 and 16: COLLAPSE OF POLYMER BRUSHES GRAFTED
Page 17 and 18: SURFACE FORCES, SUPRAMOLECULAR POLY
Page 19 and 20: SWEET BRUSHES: SYNTHESIS AND INTERF
Page 21 and 22: EFFECT OF MIXING OF TWO CHARGED PHO
Page 23 and 24: Figure 2 show a semi-log comparison
Page 25 and 26: MODELING OF STATIONARY POLYMER DIFF
Page 27 and 28: THEORY AND SIMULATION OF BILAYER ME
Page 29 and 30: Figure 1. Time evolution of the she
Page 31 and 32: SALT EFFECT TO RAYLEIGH DROPLETS OF
Page 33 and 34: MACROMOLECULES AT INTERFACES, A FLE
Page 35 and 36: APPLICATION OF HETEROGENEOUS LATTIC
Page 37 and 38: 8. Linse, P., 1993b. Phase behavior
Page 39 and 40: MODELING INTERFACIAL EFFECTS ON THE
Page 41 and 42: Using this patterned electrode, we
Page 43 and 44: span the gap between the electrodes
Page 45 and 46: desirable to use a probe with a muc
Page 47 and 48: span the gap between the electrodes
Page 49 and 50: MEMBRANE FUSION: RESULTS FROM SIMUL
Page 51 and 52: the transition temperature T * when
Page 53 and 54: PROTEIN ADSORPTION ON SURFACES WITH
Page 55 and 56: MODELLING STRUCTURE AND ADHESION AT
Page 57 and 58: References 1. Fischel, L.B. and The
Page 59 and 60: MULTIDOMAIN CONFORMATIONS OF RANDOM
Page 61 and 62: SUPRAMOLECULAR COORDINATION POLYMER
Page 63 and 64:
INFLUENCE OF POLYMERS ON THE BENDIN
Page 65 and 66:
SPINODAL DECOMPOSITION IN BINARY PO
Page 67 and 68:
PERSISTENCE LENGTH OF WORM-LIKE MIC
Page 69 and 70:
For small particles with radius R <
Page 71:
MEAN-FIELD THEORY FOR THE ADSORPTIO
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Collapse of polymer brushes grafted onto planar ... - Wageningen UR

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