Nickel and palladium complexes with fluorinated alkyl substituted alpha-diimine ligands for living/controlled olefin polymerization

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43915558" target="_blank" >RIV/60461373:22310/18:43915558 - isvavai.cz</a>

Alternative codes found

RIV/61388963:_____/18:00489953 RIV/60461373:22810/18:43915558 RIV/00216208:11310/18:10374492

Result on the web

<a href="http://dx.doi.org/10.1039/c8py00201k" target="_blank" >http://dx.doi.org/10.1039/c8py00201k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c8py00201k" target="_blank" >10.1039/c8py00201k</a>

Result language

angličtina

Original language name

Nickel and palladium complexes with fluorinated alkyl substituted alpha-diimine ligands for living/controlled olefin polymerization

Original language description

A series of six nickel and two palladium novel complexes bearing alpha-diimine ligands with fluorinated alkyl substituents in para-aryl positions was prepared. Two nickel complexes were structurally characterized by X-ray diffraction. Upon activation by methylaluminoxane or borate, the complexes were tested in ethene, propene, and hex-1-ene polymerization using toluene and chlorobenzene. Propene and hex-1-ene polymerization initiated by nickel complexes and ethene polymerization initiated by palladium complexes showed living/controlled character and yielded high molar mass polyolefins with narrow molar mass dispersity (D &lt; 1.2). The effect of fluoroalkyl substituents on catalyst activity, thermal stability and chain-walking is only minor. The branching density of polyolefins can be regulated more efficiently by the variation of ortho-aryl and backbone substituents of alpha-diimine ligands. The topology of polyethylenes prepared by palladium complexes at low ethene pressure is dendritic as shown by Mark-Houwink plots and g&apos; values obtained from SEC with viscometric detection. The solubility of most of the complexes in fluorinated solvents is limited with the exception of palladium methyl chloride derivatives which suggest the promising method for further design of catalysts suitable for interphase polymerization.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

<a href="/en/project/GC15-15887J" target="_blank" >GC15-15887J: BRANCHING DESIGN IN POLYOLEFINS BY CATALYST VARIATION. THEORY MEETS EXPERIMENT.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

POLYMER CHEMISTRY

ISSN

1759-9954

e-ISSN

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Volume of the periodical

9

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

1234-1248

UT code for WoS article

000428791700010

EID of the result in the Scopus database

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