Macromolecular Rapid Communications
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor-in-Chief: Kirsten Severing
Online ISSN: 1521-3927
Cover Picture: Macromol. Rapid Commun. 18/2004
Cover: The cover picture summarizes the copolymerization mechanism of ethylene and 1,7-octadiene (OD) with a constrained-geometry catalyst 1. The inserted OD unit formed unexpected 1,5-cyclononane units as well as 1,3-cycloheptane units in the main chain of polyethylene. This characteristic cyclononane cyclic unit would be derived from a unique OD cyclization insertion mode: cyclization insertion of the OD unit in the penultimate position after a single ethylene insertion step.
Further details can be found in the Communication by N. Naga* and A. Toyota on page 1623.