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Elastic properties of swollen real polymer networks

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Summary

In this paper a new set of stress-strain relations (uniaxial, equi-biaxial, unequibiaxial extensions and pure shear) for swollen networks were presented. Which are derived from the molecular theory of rubber elasticity with constraints of junctions and trapped entanglements and with crosslinks, trapped entanglements and carbon black-polymer interactions. They successed in relating the elastic equation of state to the volume fraction of polymer in swollen networks by three molecular parameters C′1, C′2 and C′3. The relation of stress-strain for uniaxial extension was verified by experiments. It is shown that this relation can successfully predict the dependence of V2 on the C′1, C′2 and C′3, and the contribution of modulus for swollen networks from the trapped entanglement which it shows that role of entanglements can only approach to a limited value, never to zero.

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Authors and Affiliations

  1. Department of Polymer Science, Beijing Institute of Chemical Technology, Beijing, The People's Republic of China

    Song Mingshi, Lin Hangqing & Ni Jianlong (Student of Division of Polymer Physics)

  2. Department of Applied Chemistry, China University of Science and Technology, The People's Republic of China

    Ni Jianlong (Student of Division of Polymer Physics)

Authors
  1. Song Mingshi
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  2. Lin Hangqing
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  3. Ni Jianlong
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Mingshi, S., Hangqing, L. & Jianlong, N. Elastic properties of swollen real polymer networks. Polymer Bulletin 18, 545–552 (1987). https://doi.org/10.1007/BF00255340

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  • DOI: https://doi.org/10.1007/BF00255340

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