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A new thermal analytical technique for acrylic polymers

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Summary

An unconventional thermal analytical technique has been developed for acrylic polymers. By adding water to the polymer the melting point is depressed well below the onset temperature of cyclic thermal degradation. This addition of water depresses the melting point of polyacrylonitrile from 320°C to 185°C. The melting behavior of acrylic copolymers in the wet and dry state is explained in terms of the Eby model of a polymer crystal whereby the non-crystallizable comonomers enter the crystal lattice as defects. The melting point and heat of fusion are interpreted as a measure of the regularity and strength of the intermolecular dipolar bonding that stabilizes the lattice.

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Authors and Affiliations

  1. Textiles Division, Monsanto Company, 27709, Research Triangle Park, N.C., USA

    Bruce G. Frushour

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  1. Bruce G. Frushour
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Frushour, B.G. A new thermal analytical technique for acrylic polymers. Polymer Bulletin 4, 305–314 (1981). https://doi.org/10.1007/BF00255108

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  • DOI: https://doi.org/10.1007/BF00255108

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