Hydroaminace methylmethakrylátu katalyzovaná kationtovými difosfinoazinovými komplexy palladia

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hydroamination of Methyl Methacrylate Catalyzed by Cationic Palladium Diphosphinoazine Complexes

Popis výsledku v původním jazyce

The characteristics of the cationic Ni-diphosphine azine complexes of general formula [NiX(PR2CH2C(But)=NN=C(But)CH2PR2)]+ {X=Br, R=cyclohexyl (cy), iso-propyl (Pri), tert-butyl (But), phenyl (Ph); X=Cl or I, R=cyclohexyl) as catalysts for the polymerization of ethylene were evaluated in the presence or absence of co-catalysts such as MAO, DEAC, TMA, or TIBA. The best results were obtained with MAO. The ability of the complexes to generate active catalysts is strongly influenced by the characteristics of the halogen co-ligand and by the nature of the R group at the phosphine azine ligand. The best catalyst is [NiBr{PCy2CH2C(But)=NN=C(But)CH2PCy2}]Br activated by MAO. The polymers obtained showed by by 1H and 13C NMR and DSC to be formed by branched polyethylenes, the number of branches increased with the temperature at which the polymerization took place. The molecular weight of the polymeric material was tentatively estimated from the NMR spectra.

Název v anglickém jazyce

Hydroamination of Methyl Methacrylate Catalyzed by Cationic Palladium Diphosphinoazine Complexes

Popis výsledku anglicky

The characteristics of the cationic Ni-diphosphine azine complexes of general formula [NiX(PR2CH2C(But)=NN=C(But)CH2PR2)]+ {X=Br, R=cyclohexyl (cy), iso-propyl (Pri), tert-butyl (But), phenyl (Ph); X=Cl or I, R=cyclohexyl) as catalysts for the polymerization of ethylene were evaluated in the presence or absence of co-catalysts such as MAO, DEAC, TMA, or TIBA. The best results were obtained with MAO. The ability of the complexes to generate active catalysts is strongly influenced by the characteristics of the halogen co-ligand and by the nature of the R group at the phosphine azine ligand. The best catalyst is [NiBr{PCy2CH2C(But)=NN=C(But)CH2PCy2}]Br activated by MAO. The polymers obtained showed by by 1H and 13C NMR and DSC to be formed by branched polyethylenes, the number of branches increased with the temperature at which the polymerization took place. The molecular weight of the polymeric material was tentatively estimated from the NMR spectra.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Molecular Catalysis A: Chemical

ISSN

1381-1169

e-ISSN

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Svazek periodika

259

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

41-45

Kód UT WoS článku

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EID výsledku v databázi Scopus

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