Hydrodynamic-flow-driven wetting in thin film polymer blends: Growth kinetics and morphology

被引：0
|
作者：
Wang, Howard [1 ]
Composto, Russell J. [1 ]
机构：
[1] Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia,PA,19104-6272, United States
来源：
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | 2000年 / 61卷 / 02期
关键词：
Polymer blends - Film growth - Atomic force microscopy - Esters - Hydrodynamics - Growth kinetics - Thin films - Phase separation - Styrene;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A thin film of deuterated poly(methyl methacrylate) (A) and poly(styrene-ran-acrylonitrile) at the critical composition is annealed in the two phase region to induce simultaneous phase separation and wetting of the A-rich phase at the surface. Using forward recoil spectrometry, the wetting layer thickness is found to grow linearly with time at 185 °C and 190 °C. After selective etching of A, atomic force microscopy reveals a depletion layer having a bicontinuous, phase separated morphology. The A-rich tubes in this layer provide a pathway for rapid transport of the wetting phase from the bulk to the surface via hydrodynamic flow. Taken together, fast wetting layer growth t1 and connectivity between the wetting layer and bulk provide unambiguous support for hydrodynamic-flow-driven wetting in thin film polymer blends. ©2000 The American Physical Society.
引用
收藏
页码：1659 / 1663
相关论文
共 50 条
  • [1] Hydrodynamic-flow-driven wetting in thin film polymer blends: Growth kinetics and morphology
    Wang, H
    Composto, RJ
    PHYSICAL REVIEW E, 2000, 61 (02): : 1659 - 1663
  • [2] Hydrodynamic-flow-driven phase evolution in a polymer blend film modified by diblock copolymers
    J. Rysz
    H. Ermer
    A. Budkowski
    A. Bernasik
    J. Lekki
    G. Juengst
    R. Brenn
    K. Kowalski
    J. Camra
    M. Lekka
    J. Jedliński
    The European Physical Journal E, 2001, 5 : 207 - 219
  • [3] Hydrodynamic-flow-driven phase evolution in a polymer blend film modified by diblock copolymers
    Rysz, J
    Ermer, H
    Budkowski, A
    Bernasik, A
    Lekki, J
    Juengst, G
    Brenn, R
    Kowalski, K
    Camra, J
    Lekka, M
    Jedlinski, J
    EUROPEAN PHYSICAL JOURNAL E, 2001, 5 (02): : 207 - 219
  • [4] Kinetics and nucleation for driven thin film flow
    Levy, R
    Shearer, M
    PHYSICA D-NONLINEAR PHENOMENA, 2005, 209 (1-4) : 145 - 163
  • [5] Wetting kinetics of a thin film evaporating in air
    Saritha, S.
    Neogi, P.
    PHYSICS OF FLUIDS, 2007, 19 (11)
  • [6] Wetting and reactive thin film growth
    Pavlovska, A
    Bauer, E
    SURFACE SCIENCE, 2001, 480 (03) : 128 - 136
  • [7] Tricontinuous Morphology of Ternary Polymer Blends Driven by Photopolymerization: Reaction and Phase Separation Kinetics
    Shukutani, Toshiya
    Myojo, Takahiro
    Nakanishi, Hideyuki
    Norisuye, Tomohisa
    Qui Tran-Cong-Miyata
    MACROMOLECULES, 2014, 47 (13) : 4380 - 4386
  • [8] Substrate dependence of morphology in thin film polymer blends of polystyrene and poly(methyl methacrylate)
    Winesett, DA
    Ade, H
    Sokolov, J
    Rafailovich, M
    Zhu, S
    POLYMER INTERNATIONAL, 2000, 49 (05) : 458 - 462
  • [9] Thin film polymer blends undergoing phase separation and wetting: Identification of early, intermediate, and late stages
    Wang, H
    Composto, RJ
    JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (22): : 10386 - 10397
  • [10] Understanding morphology evolution and roughening in phase-separating thin-film polymer blends
    Wang, H
    Composto, RJ
    EUROPHYSICS LETTERS, 2000, 50 (05): : 622 - 627
12345