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From X-ray, neutron diffraction and molecular modelling to the crystalline structure of stereoregular polymers: a concise outlook

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Abstract

Analysis of some relevant aspects of crystallisation of linear, stereoregular polymers is carried out. Specifically, we consider (1) the pre-crystallisation state of polyethylene in solution according to the bundle theory, (2) the difficulty of isotactic polystyrene in undergoing crystallisation and (3) the prediction power of the intra-molecular lowest-energy principle as applied specifically to iso- and syndiotactic polypropylene.

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Acknowledgments

The author gratefully acknowledges very useful discussions with S. Valdo Meille and A. Famulari.

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  1. Politecnico di Milano, Milan, Italy

    Giuseppe Allegra

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  1. Giuseppe Allegra
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Correspondence to Giuseppe Allegra.

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This contribution is the written, peer-reviewed version of a paper presented at the conference “The Centennial of X-Ray Diffraction (1912–2012)”, held at Accademia Nazionale dei Lincei in Rome on May 8 and 9, 2012.

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Allegra, G. From X-ray, neutron diffraction and molecular modelling to the crystalline structure of stereoregular polymers: a concise outlook. Rend. Fis. Acc. Lincei 24 (Suppl 1), 63–70 (2013). https://doi.org/10.1007/s12210-013-0222-8

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  • DOI: https://doi.org/10.1007/s12210-013-0222-8

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