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Design of polymer blend rheology

III. Effect of maleic anhydride containing copolymers on the melt viscosity of polyamides

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Summary

Addition of small amounts of maleic anhydride containing copolymers remarkably increases the melt viscosity of the m x D,6 polyamides (PA). Random copolymers of styrene and maleic anhydride, P(S-co-MA), have been melt blended with PA in a ratio ranging from 0.5 to 5 wt%. A linear dependence has been observed for the blend viscosity on the molar ratio of the maleic anhydride subunits in the copolymer and the amino end-groups of PA. This linear relationship holds even for blends containing a molar excess of anhydride compared to amine. These rheological effects are of prime importance for the highly desirable control of the PA processing.

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Authors and Affiliations

  1. Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, B-4000, Liège, Belgium

    R. Vankan, P. Degée, R. Jérôme & P. Teyssié

Authors
  1. R. Vankan
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  2. P. Degée
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  3. R. Jérôme
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  4. P. Teyssié
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Vankan, R., Degée, P., Jérôme, R. et al. Design of polymer blend rheology. Polymer Bulletin 33, 221–228 (1994). https://doi.org/10.1007/BF00297359

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  • DOI: https://doi.org/10.1007/BF00297359

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