2015
DOI: 10.1007/s00706-015-1494-8
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Initiation efficacy of halo-chelated cis-dichloro-configured ruthenium-based second-generation benzylidene complexes in ring-opening metathesis polymerization

Abstract: The initiation efficacy of eight differently substituted halo-chelated cis-dichloro-configured ruthenium-based second-generation benzylidene complexes was assessed in the ring-opening metathesis polymerization of a norbornene derivative in two solvents and at three temperatures. From the evaluation of the number average molecular masses and the molecular mass distributions of the resulting polymers a conclusion on the level of initiation was possible and it was found that the metathesisinactive cis-dichloro-co… Show more

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Cited by 6 publications
(2 citation statements)
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References 30 publications
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“…Energy barriers of this isomerization reaction are usually high, and thus their catalytic activity at low temperature is further decreased. However, at high temperature the initiation efficacy is governed by the relative thermodynamic stability of the cis - and the trans -isomers …”
Section: Introductionmentioning
confidence: 99%
“…Energy barriers of this isomerization reaction are usually high, and thus their catalytic activity at low temperature is further decreased. However, at high temperature the initiation efficacy is governed by the relative thermodynamic stability of the cis - and the trans -isomers …”
Section: Introductionmentioning
confidence: 99%
“…A second theoretic paper by Eva Pump et al provides the relative stabilities of cis-and trans-dihalo isomers of 86 ruthenium alkylidene complexes and is aimed at a better understanding of the implications of the said isomerization reaction in olefin metathesis reactions [16]. Finally, two works from the Slugovc-group discuss consequences of the said equilibrium for the activity of the pre-initiators in ringopening metathesis polymerization (ROMP) [17,18].…”
mentioning
confidence: 99%