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Sulfonated polyisobutylene telechelic ionomers

10. Effects of architecture and molecular weight on viscosity behavior in a nonpolar solvent

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Abstract

The gelation of polyisobutylene-based model ionomers with-S03 −K+ terminal groups has been studied in hexane at 25°C. Both molecular architecture and molecular weight were found to significantly influence the concentration at which gelation occurs. Specifically, three-arm star trifunctional ionomers gel at lower concentrations than linear difunctional ionomers of similar molecular weight. In addition, the gelation concentration decreases with increasing molecular weight for the three-arm star trifunctional ionomer, but the results do not fit the relationship reported previously which relates gelation concentration and molecular weight for carboxylated linear telechelic polymers.

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Author notes

  1. Robson Storey

    Present address: Department of Polymer Science, University of Southern Mississippi, Southern Station, Box 10076, 39406-0076, Hattiesburg, MS, USA

Authors and Affiliations

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

    Martin R. Tant & Garth L. Wilkes

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

    Robson Storey & Joseph P. Kennedy

Authors
  1. Martin R. Tant
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  2. Garth L. Wilkes
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  3. Robson Storey
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  4. Joseph P. Kennedy
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Tant, M.R., Wilkes, G.L., Storey, R. et al. Sulfonated polyisobutylene telechelic ionomers. Polymer Bulletin 13, 541–548 (1985). https://doi.org/10.1007/BF00263476

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  • DOI: https://doi.org/10.1007/BF00263476

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