[1
]
Freiburg Materials Research Center (FMF) and Institute for Macromolecular Chemistry,
Albert-Ludwigs-University Freiburg , Stefan-Meier-Strasse 31, D-79104 Freiburg, Germany.
[2
]
Basell Polyolefine GmbH, Catalyst Systems, Industriepark Hoechst , D-65926 Frankfurt
am Main, Germany.
[3
]
Sustainability Center Freiburg , Ecker-Strasse 4, D-79104 Freiburg, Germany.