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Updated: Apr 1, 2026

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
Published on: August 23, 2018
Thermal properties of ruthenium alkylidene-polymerized dicyclopentadiene
Yuval Vidavsky1, Yotam Navon2, Yakov Ginzburg1
1Department of Chemistry, Ben-Gurion University of the Negev Beer Sheva-84105, Israel.
Abstract:
Differential scanning calorimetry (DSC) analysis of ring opening methatesis polymerization (ROMP) derived polydicyclopentadiene (PDCPD) revealed an unexpected thermal behavior. A recurring exothermic signal can be observed in the DSC analysis after an elapsed time period. This exothermic signal was found to be proportional to the resting period and was accompanied by a constant increase in the glass-transition temperature. We hypothesize that a relaxation mechanism within the cross-linked scaffold, together with a long-lived stable ruthenium alkylidene species are responsible for the observed phenomenon.
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