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Influence of the type and the comonomer contents on the mechanical behavior of ethylene/α-olefin copolymers

✍ Scribed by A. G. Simanke; G. B. Galland; R. Baumhardt Neto; R. Quijada; R. S. Mauler

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
175 KB
Volume
74
Category
Article
ISSN
0021-8995

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✦ Synopsis

The influences of the type and concentration of ␣-olefin (1-hexene, 1-octene, 1-decene, 1-octadecene, 4-methyl-1-pentene) on the mechanical behavior and crystallinity degree of some ethylene/␣-olefin copolymers obtained by metallocene catalysts were studied by means of stress/strain experiments. The crystallinity degree of these copolymers has been determined by X-ray measurements. It has been observed that the copolymers show less resistance to strain as the comonomer content increases and the crystallinity decreases. Most of the studied copolymers exhibit a significant increase in the crystallinity level after the stress/strain experiments.

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