Combining the Incompatible: Melt State Grafting between High-Density Polyethylene and Isotactic Polypropylene without a Coupling Agent
Dietrich Gloger,
Gerhard Hubner,
Andreas Albrecht
et al.
Abstract:In this study, we
report the coupling of high-density polyethylene
(HDPE) and isotactic polypropylene (iPP) into grafted block copolymers
(HDPE-g-iPP) from HDPE and iPP precursors subjected
to reactive extrusion with an organic peroxide, however, without a
cross-linker. Coupling of macroradicals in the melt state is confined
to a small interfacial volume at the HDPE/iPP domain interfaces of
this immiscible two-phase blend system. The tendency of HDPE macroradicals
to branch and cross-link into a solid-like net… Show more
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