𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structural heterogeneity and dynamic mechanical relaxations of ethylene α-olefin copolymers

✍ Scribed by R. G. Matthews; I. M. Ward; G. Capaccio

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
269 KB
Volume
37
Category
Article
ISSN
0887-6266

No coin nor oath required. For personal study only.

✦ Synopsis

Dynamic mechanical measurements are reported on two polyethylene copolymers with different types of comonomers and well-characterized comonomer distributions. Measurements on both isotropic and oriented samples were undertaken over a wide frequency range. The mechanical anisotropy and activation energies of the ␣ and ␤ relaxations are consistent with the former relating to c-shear in the crystals, and the latter to interlamellar shear.

📜 SIMILAR VOLUMES

Influence of the type and the comonomer
Influence of the type and the comonomer contents on the mechanical behavior of ethylene/α-olefin copolymers
✍ A. G. Simanke; G. B. Galland; R. Baumhardt Neto; R. Quijada; R. S. Mauler 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 175 KB

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

Nonisothermal melting and crystallizatio
Nonisothermal melting and crystallization studies of homogeneous ethylene/α-olefin random copolymers
✍ Man-Ho Kim; Paul J. Phillips 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 234 KB 👁 1 views

A study of nonequilibrium melting, nonisothermal, and isothermal crystallization behavior of ethylene/1-octene (EO) random copolymers, produced using metallocene catalysts has carried out. As branch (or defect) content increases, the nonisothermal and isothermal crystallization rates, melting temper