Issue 14, 2013

Ruthenium catalyzed equilibrium ring-opening metathesis polymerization of cyclopentene

Abstract

Polypentenamer was synthetized by equilibrium ring-opening metathesis polymerization (ROMP) using well-defined ruthenium catalyst systems. It was found that the equilibrium time is influenced by the catalyst loading or the catalyst activity, however as expected, the overall cyclopentene conversion is determined only by the applied reaction temperature. Equilibrium of the growing chain and monomer was observed and the activation enthalpy and entropy were determined as: ΔH = −5.6 kcal mol−1; ΔS = −18.5 cal mol−1 K−1. So far these values are the lowest which are reported for cyclopentene polymerization catalyst systems. This unique feature of the equilibrium polymerization opens a way for the synthesis of durable, environmentally friendly elastomers where tires can be not only synthetized but also readily recycled by the same transition metal catalyst system.

Graphical abstract: Ruthenium catalyzed equilibrium ring-opening metathesis polymerization of cyclopentene

Supplementary files

Article information

Article type
Paper
Submitted
08 May 2013
Accepted
29 May 2013
First published
30 May 2013

Polym. Chem., 2013,4, 3959-3962

Ruthenium catalyzed equilibrium ring-opening metathesis polymerization of cyclopentene

R. Tuba and R. H. Grubbs, Polym. Chem., 2013, 4, 3959 DOI: 10.1039/C3PY00584D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements