Nylon-6 Containing Metal Halides I: Melting and Crystallization

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Abstract
The melting and crystallization of nylon-6 containing copper chloride, copper bromide and iron chloride has been studied by differential scanning calorimetry. The incorporation of these metal halides results in a substantial melting temperature depression, above the expected in a polymer-diluent mixture, and a strong retardation of the crystallization rate. The strong binding, probably through a complex formation, between the salt and the polymer chain results in the formation of a copolymer structure differing in its properties from the pure polymer.