Living ROMP of exo-norbornene esters possessing Pd11 SCS pincer complexes or diaminopyridines

Joel M. Pollino, Ludger P. Stubbs, Marcus Weck

Research output: Contribution to journalArticle

Abstract

Isomerically pure exo-norbornene esters containing either a Pd11 SCS pincer complex or a diaminopyridine unit were synthesized, polymerized, and copolymerized by ring-opening metathesis polymerization using a ruthenium initiator. All polymerizations are living under mild reaction conditions. A comparison between the pure exo monomers and the commonly employed 80:20 endo / exo mixtures was carried out. The exo-norbornene isomers exhibit significantly higher rates of propagation under milder conditions when compared to the endo / exo mixtures. Kinetic studies have shown that the kp values are highly dependent upon the isomeric purity but completely independent of the terminal diaminopyridine or Pd11 SCS Pincer functional groups. The living character of the polymerization has allowed for the first block copolymerization of norbornene metal-containing pincer complexes and diaminopyridine-based hydrogen-bonding receptors.

Original languageEnglish (US)
Pages (from-to)2230-2234
Number of pages5
JournalMacromolecules
Volume36
Issue number7
DOIs
StatePublished - Apr 8 2003

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Esters
Living polymerization
Ring opening polymerization
Ruthenium
Isomers
Copolymerization
Functional groups
Hydrogen bonds
Monomers
Polymerization
Kinetics
Metals
2-norbornene

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Living ROMP of exo-norbornene esters possessing Pd11 SCS pincer complexes or diaminopyridines. / Pollino, Joel M.; Stubbs, Ludger P.; Weck, Marcus.

In: Macromolecules, Vol. 36, No. 7, 08.04.2003, p. 2230-2234.

Research output: Contribution to journalArticle

Pollino, Joel M. ; Stubbs, Ludger P. ; Weck, Marcus. / Living ROMP of exo-norbornene esters possessing Pd11 SCS pincer complexes or diaminopyridines. In: Macromolecules. 2003 ; Vol. 36, No. 7. pp. 2230-2234.
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