Controlled Ring-Opening Metathesis Polymerization with Polyisobutylene-Bound Pyridine-Ligated Ru(II) Catalysts

Jakkrit Suriboot, Yue Hu, Thomas J. Malinski, Hassan S. Bazzi, David E. Bergbreiter

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study describes the use of polyisobutylene (PIB) to phase-anchor pyridine ligands that form a phase-separable Grubbs third-generation catalyst. We further show that this complex is useful in ring-opening metathesis polymerization (ROMP) reactions. These PIB-bound pyridine-ligated Grubbs catalysts provide the same benefits of control over polymer chain growth and polydispersity of the product as their low-molecular-weight analogs and reduce Ru leaching in ROMP products from approximately 16% (820 ppm residues) as seen with a similar pyridine-ligated catalyst to a value of approximately 3% (160 ppm residues). These labile ligands are shown to be as effective at generating separable metal complexes as less labile PIB-functionalized N-heterocyclic carbene catalyst ligands that are typically used for immobilization but that require a multistep synthesis.

Original languageEnglish
Pages (from-to)714-721
Number of pages8
JournalACS Omega
Volume1
Issue number4
DOIs
Publication statusPublished - 31 Oct 2016

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Ring opening polymerization
Pyridine
Catalysts
Ligands
Coordination Complexes
Polydispersity
Metal complexes
Anchors
Leaching
Polymers
Molecular weight
polyisobutylene
pyridine

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Controlled Ring-Opening Metathesis Polymerization with Polyisobutylene-Bound Pyridine-Ligated Ru(II) Catalysts. / Suriboot, Jakkrit; Hu, Yue; Malinski, Thomas J.; Bazzi, Hassan S.; Bergbreiter, David E.

In: ACS Omega, Vol. 1, No. 4, 31.10.2016, p. 714-721.

Research output: Contribution to journalArticle

Suriboot, Jakkrit ; Hu, Yue ; Malinski, Thomas J. ; Bazzi, Hassan S. ; Bergbreiter, David E. / Controlled Ring-Opening Metathesis Polymerization with Polyisobutylene-Bound Pyridine-Ligated Ru(II) Catalysts. In: ACS Omega. 2016 ; Vol. 1, No. 4. pp. 714-721.
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