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Flow-induced crystallization in poly-1-butene: the shish-kebab transition

  • Symposium MS10: Structures and properties of polymers
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ABSTRACT

In this work, flow-birefringence measurements have been performed to monitor the orientation development during application of high shear flow in undercooled polymer melts. It is demonstrated that a critical shear rate and a critical shear strain are required in order to form strongly oriented shish-kebab structures. After reaching such critical conditions, the crystallization kinetics - measured both by means of birefringence as well as transmitted intensity measurements - is drastically increased. The results generated in this work suggest that Janeschitz-Kriegl’s [1] hypothesis about the need for a specific amount of work required to form shish-kebab structures is valid, at least for the conditions investigated.

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REFERENCES

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Authors and Affiliations

  1. Department of Chemical Engineering, K.U. Leuven - W. de Croylaan 46, B-3001, Leuven, Belgium

    P. Van Puyvelde & J. Baert

  2. Solvay Central Laboratory, Rue de Ransbeek 310, B-1120, Brussels, Belgium

    F. Langouche

Authors
  1. P. Van Puyvelde
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  2. F. Langouche
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  3. J. Baert
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Correspondence to P. Van Puyvelde.

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Van Puyvelde, P., Langouche, F. & Baert, J. Flow-induced crystallization in poly-1-butene: the shish-kebab transition. Int J Mater Form 1 (Suppl 1), 667–670 (2008). https://doi.org/10.1007/s12289-008-0303-x

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  • DOI: https://doi.org/10.1007/s12289-008-0303-x

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