Summary
Glass transition measurements of nylon-6/lithium halides mixtures have been carried out in wide range of frequency with the aid of different experimental techniques.
The results show an increase of the glass transition temperature when the salt is present and prove the larger effectiveness of lithium chloride with respect of lithium bromide.
This effect, in line with the large reduction of the specific volume caused by the salt, is due to the formation of a pseudo-cross-linking between lithium ions and the carbonyl-oxygen groups of the polyamide.
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La Mantia, F.P., Acierno, D. The glass transition behaviour of salted nylon 6. Colloid & Polymer Sci 259, 693–696 (1981). https://doi.org/10.1007/BF01419312
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DOI: https://doi.org/10.1007/BF01419312