Physical and Mechanical Behavior of Polyamide-6 Containing Oxyaromatic Compounds
Title:
Physical and Mechanical Behavior of Polyamide-6 Containing Oxyaromatic Compounds
Author:
Arzhakov, M. S. Nechaeva, E. V. Khairullin, I. I. Volkov, A. V. Volynskii, A. L. Bakeev, N. F.
Appeared in:
International journal of polymeric materials
Paging:
Volume 40 (1998) nr. 3-4 pages 289-308
Year:
1998-06-01
Contents:
The distribution of oxyaromatic compound in PA-6 amorphous regions between two structural forms, which are characterized by different energy of interaction with polymer matrix, was studied. Physical and mechanical properties (glass transition temperature, water sorption, elastic modulus) of PA-6 containing oxyaromatic compound were shown to be controlled not only by the net content of oxyaromatic compound in polymer, but by its distribution between these structural forms. This distribution appears to govern the mechanical properties of the polymer in the region of its relaxation transition from glassy to rubbery state, whatever this state was achieved by increasing the concentration of plasticizer (water) or by increasing the temperature. The experimental evidence obtained was discussed with the account for structural heterogeneity of the amorphous regions of semicrystalline PA-6.