✦ LIBER ✦

Synthesis and Characterization of Novel Ethene-graft-Ethene/Propene Copolymers

✍ Scribed by Burçak Arikan; Florian J. Stadler; Joachim Kaschta; Helmut Münstedt; Walter Kaminsky

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 164 KB
Volume: 28
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200700161

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✦ Synopsis

Abstract

The synthesis of ethene/propene macromers with a high amount of sterically unhindered vinyl groups is described. These macromers are incorporated as long‐chain branches into polyethylene (PE). The remaining low molecular fractions were removed by Soxhlet extraction. Up to 60 wt.‐% macromer was included, which leads to comb‐like molecular topographies that distinctly affect the rheological behavior. The thermal activation energy increased significantly and the zero shear‐rate viscosity enhancement factor η~0~/****η was also changed noticeably.

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