Neodymium-Mediated Coordinative Chain Transfer Polymerization of Isoprene in the Presence of External Donors.

ABSTRACT: Nd-based polydiene elastomers, including NdIR and NdBR, are regarded as indispensable key raw materials in preparing green tires with excellent performance capabilities, but their wide application is still limited by the relative higher cost of Nd precatalysts. Nd-mediated coordinative chain transfer polymerization (CCTP) of diene provides an effective strategy to reduce the precatalyst cost, because this method involves very high atom economy, i.e., each Nd molecule can generate multiple polymer chains. Nevertheless, all possible factors that could influence such CCTP behaviors are still mostly unexplored to date. In this report, the basic chemistry on the influence of external donors on the overall CCTP behaviors of isoprene was established for the first time. It was found that increasin

SUBMITTER: Ding A 

PROVIDER: S-EPMC10648742 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature