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New polyisobutylene based model ionomers

3. Further mechanical and structural studies

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Abstract

Three-arm star polyisobutylene ionomers (¯Mn=8800) with terminal ∼SO3 ⊖ M⊕ (M⊕=K⊕ or Ca2⊕) groups were synthesized and their mechanical properties investigated. Compression molded films displayed high elongations, i.e., ∼-1000% for Ca2⊕ ionomers with lower values for the K⊕ counterions. Strain induced crystallinity was observed at higher elongations. Mechanical properties in general compared favorably with conventional covalently linked rubbery networks and were comparable and in some cases superior to EPDM-based ionomers carrying randomly distributed ∼SO3 ⊖ M⊕ groups.

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Authors and Affiliations

  1. Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 24061-6496, Blacksburg, VA, USA

    Yousef Mohajer, Dinesh Tyagi & Garth L. Wilkes

  2. Institute of Polymer Science, The University of Akron, 44325, Akron, OH, USA

    Robson F. Storey & Joseph P. Kennedy

Authors
  1. Yousef Mohajer
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  2. Dinesh Tyagi
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  3. Garth L. Wilkes
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  4. Robson F. Storey
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  5. Joseph P. Kennedy
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Additional information

For the first two parts see Proceedings, 28th IUPAC Macromolecular Symposium, Amherst, MA, July 11–16, 1982, p. 905 and 906

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Mohajer, Y., Tyagi, D., Wilkes, G.L. et al. New polyisobutylene based model ionomers. Polymer Bulletin 8, 47–54 (1982). https://doi.org/10.1007/BF00263007

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  • DOI: https://doi.org/10.1007/BF00263007

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