Macrocyclic Ruthenium Ring Expansion Metathesis Polymerization Initiators Exhibit Tether Length-Dependent Behavior.

ABSTRACT: Polymers with a cyclic architecture are invaluable constructs for a variety of materials science and engineering applications. Due to their macrocyclic nature, these plastics are imbued with enhanced mechanical durability; a single scission event along the backbone keeps the polymer intact, and the molar mass remains unchanged. Hence, polymer topology can be envisioned as a strategy to prolong the useful lifetime of a material before failure. With a growing interest in synthesizing such cyclic polymers using ring-expansion metathesis polymerization (REMP), there remains an unmet need to further understand the structure-activity relationships of the requisite organometallic initiators. While analogous Ru-based initiators for ring-opening metathesis polymerization (ROMP) have been widely stu

SUBMITTER: Pomfret MN 

PROVIDER: S-EPMC12547507 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature