Solid polyamide-6/CaCl 2 polymer complexes with values of the salt/polymer repeat unit molar ratio (z) as high as 40% were prepared by a new method involving room-temperature extrusion of a blend of polymer and salt powders in the presence of small amounts of methanol, followed by solvent elimination and drying. Complexation between polymer amide groups and salt ions was investigated by infra-red spectroscopy, wide-angle X-ray scattering and differential thermal analysis. Complexes were shown to absorb water more readily and to a greater extent than the parent polymer. The plasticizing effect of water on this type of material was demonstrated by dynamic mechanical measurements.
Посилання на статтю:
Low-temperature extrusion and properties of solid polyamide-6/calcium chloride complexes / C. Joussot-Dubien, R. Engel*t and M. Vert // Polymer. – 1994. – Vol 35. – P. 3691-3697.