IDEAS home Printed from https://ideas.repec.org/h/spr/sprchp/978-3-540-26589-4_2.html
   My bibliography  Save this book chapter

Chain Conformations and Phase Behavior in Confined Polymer Blends

In: High Performance Computing in Science and Engineering’ 04

Author

Listed:
  • A. Cavallo

    (Johannes Gutenberg Universität, Institut für Physik, WA331)

  • M. Müller

    (Johannes Gutenberg Universität, Institut für Physik, WA331)

  • K. Binder

    (Johannes Gutenberg Universität, Institut für Physik, WA331)

Abstract

We investigate the chain conformations and phase separation in binary polymer blends. Using large scale semi-grandcanonical Monte Carlo simulations and finite size scaling, we investigate the molecular extension and the intermolecular paircorrelation function in thin films with hard, non-preferentially adsorbing surfaces. The interplay between chain conformations, demixing and the validity of mean field theory is investigated for a large variation of chain lengths 16 ≤ N ≤ 512. Three regimes of film thickness D can be distinguished: (i) For film thicknesses much larger than the unperturbed chain extension R e, bulk behavior is observed, i.e., the critical temperature of demixing T c increases linearly with chain length, and the mean field theory becomes asymptotically correct for large N. (ii) For D ∼ R e, the critical temperature scales linearly, T c ∼ N, but the mean field theory overestimates the prefactor even in the limit N → ∞ (iii) For ultrathin films, the chain conformations are quasi-two-dimensional, T c ∼ √N and mean field theory completely fails.

Suggested Citation

  • A. Cavallo & M. Müller & K. Binder, 2005. "Chain Conformations and Phase Behavior in Confined Polymer Blends," Springer Books, in: Egon Krause & Willi Jäger & Michael Resch (ed.), High Performance Computing in Science and Engineering’ 04, pages 3-15, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-26589-4_2
    DOI: 10.1007/3-540-26589-9_2
    as

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a
    for a similarly titled item that would be available.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:sprchp:978-3-540-26589-4_2. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.