Macromolecular cross-metathesis offers a top-down approach fusing polyolefin homopolymers to multiblock copolymers

(Cell Reports Physical Science 7, 103135; February 18, 2026) The authors regret that some contents were missing from the acknowledgments section of this article when it was originally published, which should have been properly included as follows: “The authors thank Prof. Richard A. Register, former postdoctoral supervisor of the first author, Lei Wu, at Princeton University, for his contributions to this research in conceiving and designing the experiments and in interpreting the results. Lei Wu also acknowledges the funding and facilities provided by Princeton University and the Princeton Catalysis Initiative for this research.” The acknowledgments section has since been updated accordingly. The authors apologize for any inconvenience caused.