Skip to main content
SpringerLink
Log in

Heterogeneous polymer systems

VI. Influence of molecular weight on the POO-emulsifier activity of SB-block copolymers

  • Originalarbeiten
  • Kolloide
  • Published:
Kolloid-Zeitschrift und Zeitschrift für Polymere Aims and scope Submit manuscript

Summary

The emulsifier activity of styrene-butadiene block copolymers of the AB type in polymeric oil-in-oil emulsions (POO-emulsions) has been studied as a function of the molecular weight of the block copolymer in the system polybutadiene-polystyrene-benzene. The emulsifier activity increases with increasing molecular weight of the block copolymer. The total molecular weight must be above 100,000 and the degrees of polymerization of each of the individual sequences must be above approximately 500 for a block copolymer to be a good POO-emulsifier.

Zusammenfassung

Die Emulgierwirkung von Styrol/Butadien-Blockcopolymeren des Types AB in Polymeren-(Öl-in-Öl)-Emulsionen (POO-Emulsionen) ist im System Polybutadien-Polystyrol-Benzol in Abhängigkeit vom Molekulargewicht des Blockcopolymeren untersucht worden. Die Emulgierwirkung steigt mit wachsendem Molekulargewicht des Blockcopolymeren an. Wenn ein Blockcopolymeres ein guter Emulgator sein soll, muß sein Gesamtmolekulargewicht oberhalb von 100000 liegen, und der Polymerisationsgrad jeder einzelnen Sequenz muß größer als 500 sein.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Molau, G. E., J. Polymer Sci.A3, 1267, 4235 (1965).

    Google Scholar 

  2. Dobry, A. and F. Boyer-Kawenoki, J. Polymer Sci.2, 90 (1947).

    Google Scholar 

  3. Flory, P. J., Principles of Polymer Chemistry (Ithaca, New York 1953).

  4. Molau, G. E., Characterization of Macromolecular Structure, Chapter 3, ed. Donald McIntire, Publication 1573 (Nat. Acad. Sci., Washington, D. C., 1968).

    Google Scholar 

  5. Meier, D. J., J. Phys. Chem.71, 1861 (1967).

    Google Scholar 

  6. Polymer Handbook, ed.J. Brandrup andE. H. Immergut (New York 1966).

Download references

Author information

Author notes

  1. G. E. Molau

    Present address: Physical Research Laboratory, The Dow Chemical Company, 48640, Midland, Michigan, (U.S.A.)

Authors and Affiliations

    Authors
    1. G. E. Molau
      View author publications

      You can also search for this author in PubMed Google Scholar

    Additional information

    With 5 figures and 3 tables

    Part of a presentation at the Gordon Research Conference on Chemistry at Interfaces, Kimball Union Academy, Meriden, New Hampshire, July 21–26, 1968.

    Rights and permissions

    Reprints and permissions

    About this article

    Cite this article

    Molau, G.E. Heterogeneous polymer systems. Kolloid-Z.u.Z.Polymere 238, 493–498 (1970). https://doi.org/10.1007/BF02085577

    Download citation

    • Received:

    • Issue Date:

    • DOI: https://doi.org/10.1007/BF02085577

    Keywords

    Search

    Navigation