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Cooperative Effects in Strained Polymeric Networks

  • B Deloche (a1), P Sotta (a1) and J Herz (a2)

The orientational order generated in a polymer network by an uniaxial stress is probed with NMR. The experiments are performed on an end-linked polydimethylsiloxane network. When a uniaxial force is applied a detailed analysis of the spectrum shows that the segmental motions become uniaxial around constraint direction. This experimental fact is explained by shortrange orientational interactions between chain segments.

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[2] Samulski, E.T., Polymer 1985, 26, 177
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[6] Sotta, P., Deloche, B., to be published in Macromolecules 1990.
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MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
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