Abstract
The morphology of semi-crystalline polymers is crucial to their application. Homogeneous nucleation generally does not provide consistent properties, as nuclei appear throughout the crystallization, giving a broad distribution of sizes, and hence crystallization will be controlled too much by the processing conditions. Heterogeneous nucleation gives crystals of consistent size, as all nuclei are present at the start of crystallization and the nucleant controls crystallization. Heterogeneous nucleation may be caused by initiator residues, impurities etc., or preferably by addition of a specialized nucleating agent. The latter is preferred as control of the system is deliberate.
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References
Galeski, A., Nucleation of Polypropylene, in Karger-Kocsis, J. (1994), Polypropylene Structure, Blends and Composites, Vol. 1 Structure and Morphology, Chapman & Hall, London, pp. 119–139.
Phillips, R.A. and Wolkowski, M.D. (1996), Structure and Morphology, pp. 113–176, and Becker, R.F., Burton, L.P.J. and Amos, S.E. (1996), Additives, pp. 177-210, in Moore, E.P. (Ed.), Polypropylene Handbook, Hanser Publishers, Munich.
Petermann, J., Epitaxial Growth on and with Polypropylene, in Karger-Kocsis, J. (1994), Polypropylene Structure, Blends and Composites, Vol. 1 Structure and Morphology, Chapman & Hall, London, pp. 119–139.
Jansen, J. (1985), Nucleating Agents for Partly Crystalline Polymers, in Gachter, R. and Muller, H. (Eds), Plastics Additives Handbook, Hanser Publishers, Munich, pp. 671–683.
Cheng, S.Z.D., Janimak, J.J. and Rodriguez, J., Crystalline Structures of Polypropylene Homo-and Copolymers, in Karger-Kocsis, J. (1994), Polypropylene Structure, Blends and Composites, Vol. 1 Structure and Morphology, Chapman & Hall, London, pp. 119–139.
Varga, J., Crystallisation, Melting and Supramolecular Structure of Isotactic Polypropylene, in Karger-Kocsis, J. (1994), Polypropylene Structure, Blends and Composites, Vol. 1 Structure and Morphology, Chapman & Hall, London, pp. 119–139.
Long, Y., Shanks, R.A. and Stachurski, Z.H. (1995), A Practical Guide to Study Kinetics of Polymer Crystallisation, Progress in Polymer Science, 20, 651–701.
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Shanks, R.A., Tiganis, B.E. (1998). Nucleating agents for thermoplastics. In: Pritchard, G. (eds) Plastics Additives. Polymer Science and Technology Series, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5862-6_50
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DOI: https://doi.org/10.1007/978-94-011-5862-6_50
Publisher Name: Springer, Dordrecht
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