Ring Opening Metathesis Polymerization of Cyclopentene Using a Ruthenium Catalyst Confined by a Branched Polymer Architecture

Handle URI:
http://hdl.handle.net/10754/603714
Title:
Ring Opening Metathesis Polymerization of Cyclopentene Using a Ruthenium Catalyst Confined by a Branched Polymer Architecture
Authors:
Mugemana, Clement; Bukhriakov, Konstantin; Bertrand, Olivier; Vu, Khanh B.; Gohy, Jean-Francois; Hadjichristidis, Nikolaos ( 0000-0003-1442-1714 ) ; Rodionov, Valentin
Abstract:
Multi-arm polystyrene stars functionalized with Grubbs-type catalysts in their cores were synthesized and used for the ring-opening metathesis polymerization (ROMP) of cyclopentene. The spatial confinement of the catalytic sites and the nanoscale phase separation between polystyrene and the growing polypentenamer chains lead to a dramatic inhibition of the ROMP termination and chain transfer steps. Consequently, cyclopentene polymerizations proceeded fast and with a high degree of conversion even in air. The Grubbs second generation catalyst was oxidatively inactivated under the same conditions. In contrast to conventional small-molecule catalysts, the ultimate degree of conversion of cyclopentene monomer and the polydispersity of the product polypentenamer are not affected by the temperature. This indicates that spatial confinement of the catalyst resulted in a significant change in the activation parameters for the alkene metathesis ring-opening.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division
Citation:
Ring Opening Metathesis Polymerization of Cyclopentene Using a Ruthenium Catalyst Confined by a Branched Polymer Architecture 2016 Polym. Chem.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Polym. Chem.
Issue Date:
22-Mar-2016
DOI:
10.1039/C6PY00389C
Type:
Article
ISSN:
1759-9954; 1759-9962
Sponsors:
This research was supported by King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2016/PY/C6PY00389C
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorMugemana, Clementen
dc.contributor.authorBukhriakov, Konstantinen
dc.contributor.authorBertrand, Olivieren
dc.contributor.authorVu, Khanh B.en
dc.contributor.authorGohy, Jean-Francoisen
dc.contributor.authorHadjichristidis, Nikolaosen
dc.contributor.authorRodionov, Valentinen
dc.date.accessioned2016-03-27T12:30:00Zen
dc.date.available2016-03-27T12:30:00Zen
dc.date.issued2016-03-22en
dc.identifier.citationRing Opening Metathesis Polymerization of Cyclopentene Using a Ruthenium Catalyst Confined by a Branched Polymer Architecture 2016 Polym. Chem.en
dc.identifier.issn1759-9954en
dc.identifier.issn1759-9962en
dc.identifier.doi10.1039/C6PY00389Cen
dc.identifier.urihttp://hdl.handle.net/10754/603714en
dc.description.abstractMulti-arm polystyrene stars functionalized with Grubbs-type catalysts in their cores were synthesized and used for the ring-opening metathesis polymerization (ROMP) of cyclopentene. The spatial confinement of the catalytic sites and the nanoscale phase separation between polystyrene and the growing polypentenamer chains lead to a dramatic inhibition of the ROMP termination and chain transfer steps. Consequently, cyclopentene polymerizations proceeded fast and with a high degree of conversion even in air. The Grubbs second generation catalyst was oxidatively inactivated under the same conditions. In contrast to conventional small-molecule catalysts, the ultimate degree of conversion of cyclopentene monomer and the polydispersity of the product polypentenamer are not affected by the temperature. This indicates that spatial confinement of the catalyst resulted in a significant change in the activation parameters for the alkene metathesis ring-opening.en
dc.description.sponsorshipThis research was supported by King Abdullah University of Science and Technology (KAUST).en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2016/PY/C6PY00389Cen
dc.rightsArchived with thanks to Polym. Chem.en
dc.titleRing Opening Metathesis Polymerization of Cyclopentene Using a Ruthenium Catalyst Confined by a Branched Polymer Architectureen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPolym. Chem.en
dc.eprint.versionPost-printen
dc.contributor.institutionUniversite Catholique de Louvain, Institute of Condensed Matter and Nanosciences (IMCN), Bio and soft matter (BSMA) Place Louis Pasteur 1bte L4.01.01-1348 Louvain-la-Neuve Belgium.en
dc.contributor.institutionNTT Hi-Tech Institute, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh Street, Ho Chi Minh City, Vietnam.en
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorMugemana, Clementen
kaust.authorBukhriakov, Konstantinen
kaust.authorVu, Khanh B.en
kaust.authorHadjichristidis, Nikolaosen
kaust.authorRodionov, Valentinen
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