A Molecular Ripcord (IMAGE) Eindhoven University of Technology Caption A catalyst can be switched from a dormant to an active state by pulling on a polymer chain, a "molecular ripcord". Credit Rint Sijbesma Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.