The Elastic Behavior of CIS-1,4-Polybutadiene

  • R. W. Brotzman


This article presents uniaxial extension measurements on cis-1,4- polybutadiene networks of known junction functionality. The observed values of the reduced force from uniaxial extension measurements conform to the constrained junction theory of Flory. The reduced force intercept at 1/α = 0 is fully comprehensible in terms of the cycle rank of the network, and can be calculated from chemical considerations. This holds even though the polybutadiene melt has a high plateau modulus. Therefore, discrete topological entanglements do not contribute perceptibly to the equilibrium modulus of polybutadiene networks.


Primary Chain Equilibrium Modulus Polymer Volume Fraction Gelation Study Cycle Rank 
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Copyright information

© Springer Science+Business Media New York 1986

Authors and Affiliations

  • R. W. Brotzman
    • 1
  1. 1.Dept. of ChemistryCUNYStaten IslandUSA

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