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Notched impact strength (N1S) has been determined (before and after thermal ageing at 150°C) as a measure of toughness for a wide range of poly(aryl ether sulphone)s and the results correlated with the structure of the polymers' repeat units. It appears that the most important structural factor determining toughness is the symmetry of the extended polymer chains; the incorporation of repeat units that disrupt symmetry leads to large reductions in NIS, while the introduction of structures that increase symmetry provides a significant improvement

Посилання на статтю:

Effects of repeat unit structure on the toughness of poly(aryl ether sulphone)s / T. E. Attwood*, M. B. Cindereyt and J. B. Rose // Polymer. – 1993. – Vol 34. – P. 1322-1324.

Effects of repeat unit structure on the toughness of poly(aryl ether sulphone)s - Завантажити.