Network Development in Films Cast from Emulsions of Polydimethylsiloxane

  • Daniel Graiver
  • John C. Saam
  • Madhu Baile
Part of the Polymer Science and Technology book series


A current trend in the coatings industry is to shift from solvent based systems to emulsions. In elastomeric coatings cross-linking must occur at some stage during the drying of the latex to obtain useful films. It is also particularly desirable for cross-linking to occur at room temperature. This paper describes such a system based on polydimethylsiloxane (PDMS). It consists of an anionically stabilized emulsion of high molecular weight PDMS terminated with silanol (1), colloidal silica and dialkytin-dicarboxyl-ate curing agent (2). Network formation begins at room temperature before the films are dried and rubbery coherent films form before all the water evaporates from the system. This paper describes the cure process and offers an interpretation of the observed phenomena.


Intrinsic Viscosity Emulsion Polymer Polymer Particle Colloidal Silica Cast Film 
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  1. (1).
    J. C. Saam and D. J. Huebner, in preparation.Google Scholar
  2. (2).
    J. C. Saam, R. D. Johnson and C. M. Schmidt, U. S. Patent 4,221, 688 (1980).Google Scholar
  3. (3).
    S. M. Ahmed, M. S. El-Aasser, G. H. Pauli, G. W. Pohelein and J. W. Vanderhoff, J. Coll. and Interface Sci., 73(2), 388 (1980).CrossRefGoogle Scholar
  4. (4).
    M. Morton, J. Coll. Sci., 9, 300 (1954).CrossRefGoogle Scholar
  5. (5).
    J. Ugelstad, Macro. Chem., 179, 815 (1978).CrossRefGoogle Scholar
  6. (6).
    L. H. Cragg and J. A. Manson, J. Pol. Sci., 8, 265 (1952).ADSCrossRefGoogle Scholar
  7. (7).
    T. C. Chou and A. Rudin, J. Pol. Sci., 11, 2591 (1973).Google Scholar
  8. (8).
    S. H. Maron, N. Nakajima and I. M. Krieger, J. Pol. Sci., 37, 1 (1959).ADSCrossRefGoogle Scholar
  9. (9).
    P. J. Flory, “Principles of Polymer Chemistry”, Cornell U. Press, Ithaca, New York, 1963, p. 580.Google Scholar

Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • Daniel Graiver
    • 1
  • John C. Saam
    • 1
  • Madhu Baile
    • 1
  1. 1.Dow Corning CorporationMidlandUSA

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