Dynamic properties of poly(styrene)-poly(ethylene oxide) diblock copolymer films at the air-water interface.

The complex dynamic elasticity of monolayers of the diblock copolymer poly(styrene)-poly(ethylene oxide) at the air-water interface in the pancake, quasi-brush, and brush regimes has been studied by means of three experimental techniques--the surface transverse and longitudinal waves and the oscillating barrier method. In the pancake regime the surface viscoelastic properties in the frequency range under investigation (0.01-520 Hz) prove to be indistinguishable from the surface properties of the homopolymer PEO. Transition to the quasi-brush regime is accompanied by rather abrupt changes in both components of the surface viscoelasticity. The surface viscosity in the brush regime exceeds significantly the results calculated from the theory of D. M. A. Buzza et al. (J. Chem. Phys.109, 5008 (1998)), which takes into account the dissipation arising from the flow of solvent through the brush phase. Possible reasons of this discrepancy are discussed.

[1]  V. Roldughin,et al.  Kinetic Phenomena in the Diffusion of Gases in Capillaries and Porous Bodies , 2002 .

[2]  L. R. Hutchings,et al.  Capillary Wave Properties of a Spread Film of a Polybutadiene−Poly(ethylene oxide) Block Copolymer: 2. Cyclohexane−Water Interface , 2001 .

[3]  E. Dickinson,et al.  Food colloids: fundamentals of formulation. , 2001 .

[4]  M. C. Stuart,et al.  Polyacrylic Acid Brushes: Surface Pressure and Salt-Induced Swelling , 2000 .

[5]  F. Monroy,et al.  Viscoelastic Behavior of 1-Dodecanol Monolayers Undergoing a Liquid−Solid Phase Transition. A Surface Quasielastic Light Scattering Study , 2000 .

[6]  A. Semenov,et al.  Collective Dynamics of Polymer Brushes , 2000 .

[7]  F. Monroy,et al.  Negative effective surface viscosities in insoluble fatty acid monolayers: effect of phase transitions on dilational viscoelasticity. , 1999, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[8]  Alexandrov,et al.  Dynamic Surface Elasticity of Micellar and Nonmicellar Solutions of Dodecyldimethyl Phosphine Oxide. Longitudinal Wave Study. , 1999, Journal of colloid and interface science.

[9]  Kui Yu,et al.  Polystyrene−Poly(ethylene oxide) Diblock Copolymers Form Well-Defined Surface Aggregates at the Air/Water Interface , 1999 .

[10]  W. Knoll,et al.  Viscoelastic Properties of Lipopolymers at the Air−Water Interface: A Combined Interfacial Stress Rheometer and Film Balance Study , 1999 .

[11]  R. Merkel,et al.  A systematic infrared reflection-absorption spectroscopy and film balance study of the phase behavior of lipopolymer monolayers at the air-water interface , 1999 .

[12]  G. J. Fleer,et al.  Grafted adsorbing polymers : scaling behavior and phase transitions , 1999 .

[13]  B. Noskov,et al.  DYNAMIC SURFACE ELASTICITY OF SURFACTANT SOLUTIONS , 1998 .

[14]  F. Monroy,et al.  DILATATIONAL RHEOLOGY OF INSOLUBLE POLYMER MONOLAYERS : POLY(VINYLACETATE) , 1998 .

[15]  T. McLeish,et al.  Theory of surface light scattering from a fluid–fluid interface with adsorbed polymeric surfactants , 1998 .

[16]  J. Joanny,et al.  Polymer Brushes Formed by End-Capped Poly(ethylene oxide) (PEO) at the Air−Water Interface , 1998 .

[17]  R. Richards,et al.  Surface Quasi-Elastic Light Scattering from an Amphiphilic Graft Copolymer at the Air−Water Interface , 1998 .

[18]  Reinhard Miller,et al.  DYNAMIC SURFACE ELASTICITY OF AQUEOUS SOLUTIONS OF POLYETHYLENE GLYCOL , 1998 .

[19]  J. Webster,et al.  Surface phase separation in an amphiphilic block copolymer monolayer at the air-water interface , 1997 .

[20]  J. Martinho,et al.  Interfacial Behavior of Poly(styrene)-Poly(ethylene oxide) Diblock Copolymer Monolayers at the Air-Water Interface. Hydrophilic Block Chain Length and Temperature Influence , 1996 .

[21]  C. Toprakcioglu,et al.  Probing Collective Motions of Terminally Anchored Polymers , 1996, Science.

[22]  B. Noskov.  Fast adsorption at the liquid-gas interface , 1996 .

[23]  É. Raphaël,et al.  Scaling Description of Polymer Interfaces: Flat Layers , 1996 .

[24]  J. Eastoe,et al.  Properties of surfactant monolayers studied by surface light scattering , 1996 .

[25]  B. Noskov,et al.  Kinetic Study of Sodium Decyl Sulfate Solutions by the Capillary Wave Method , 1996 .

[26]  M. Mellema,et al.  Tethered adsorbing chains: neutron reflectivity and surface pressure of spread diblock copolymer monolayers. , 1995 .

[27]  E. Sackmann,et al.  Conformational Transitions of Mixed Monolayers of Phospholipids and Poly(ethylene oxide) Lipopolymers and Interaction Forces with Solid Surfaces , 1995 .

[28]  J. Earnshaw,et al.  Surface Light-Scattering Studies of Surfactant Solutions , 1995 .

[29]  B. Noskov.  Dynamic surface elasticity of polymer solutions , 1995 .

[30]  D. Vollhardt.  Nucleation and growth in supersaturated monolayers , 1993 .

[31]  Hyuk Yu,et al.  Thin films of a binary polymer system : poly(vinyl acetate)poly(dimethylsiloxane) layers at the air/water interface , 1993 .

[32]  A. Bailey,et al.  The interfacial rheological behaviour of monolayers of PEO/PMMA graft copolymers spread at the air/water and oil/water interfaces , 1993 .

[33]  G. J. Fleer,et al.  Polymers at Interfaces , 1993 .

[34]  E. Zhulina,et al.  Self-consistent field theories for polymer brushes: lattice calculations and an asymptotic analytical description , 1992 .

[35]  L. Léger,et al.  Structures of end-grafted polymer layers: a small-angle neutron scattering study , 1991 .

[36]  Léger,et al.  Characterization of the brush regime for grafted polymer layers at the solid-liquid interface. , 1991, Physical review letters.

[37]  Scott T. Milner,et al.  Theory of the grafted polymer brush , 1988 .

[38]  O. Borisov,et al.  Structure of densely grafted polymeric monolayers , 1988 .

[39]  M. Kawaguchi,et al.  A surface light scattering study of poly(ethylene oxide) and poly(vinyl acetate) at the air-water and heptane/water interfaces , 1987 .

[40]  P. G. de Gennes,et al.  Conformations of Polymers Attached to an Interface , 1980 .

[41]  S. Alexander,et al.  Adsorption of chain molecules with a polar head a scaling description , 1977 .