Tube model for the elasticity of entangled nematic rubbers |
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Authors: | S Kutter EM Terentjev |
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Institution: | (1) Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 0HE, United Kingdom, GB |
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Abstract: | Dense rubbery networks are highly entangled polymer systems, with significant topological restrictions for the mobility of
neighbouring chains and crosslinks preventing the reptation constraint release. In a mean-field approach, entanglements are
treated within the famous reptation approach, since they effectively confine each individual chain in a tube-like geometry.
We apply these classical ideas to calculate the effective rubber-elastic free energy of anisotropic networks, nematic liquid
crystal elastomers, and present the first theory of entanglements for such a material.
Received 25 June 2001 |
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Keywords: | PACS 61 41 +e Polymers elastomers and plastics – 61 30 Vx Polymer liquid crystals – 62 20 Dc Elasticity elastic constants |
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