alpha-keto-beta-diimine nickel-catalyzed olefin polymerization: Effect of ortho-aryl substituents and preparation of stereoblock copolymers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913689" target="_blank" >RIV/60461373:22310/17:43913689 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/17:10361117
Result on the web
<a href="http://onlinelibrary.wiley.com/doi/10.1002/pola.28206/full" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/pola.28206/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pola.28631" target="_blank" >10.1002/pola.28631</a>
Alternative languages
Result language
angličtina
Original language name
alpha-keto-beta-diimine nickel-catalyzed olefin polymerization: Effect of ortho-aryl substituents and preparation of stereoblock copolymers
Original language description
A series of -keto--diimine nickel complexes (Ar-N=C(CH3)-C(O)-C(CH3)=N-Ar)NiBr2; Ar=2,6-R-C6H3-, R=Me, Et, iPr, and Ar=2,4,6-Me-3-C6H3-) was prepared. All corresponding ligands are unstable even under an inert atmosphere and in a freezer. Stable copper complex intermediates of ligand synthesis and ethyl substituted nickel complex were isolated and characterized by X-ray. All nickel complexes were used for the polymerization of ethene, propylene, and hex-1-ene to investigate their livingness and the extent of chain-walking. Low-temperature propene polymerization with less bulky ortho-substituents was less isospecific than the one with isopropyl derivative. Propene stereoblock copolymers were prepared by iPr derivative combining the polymerization at low temperature to prepare isotactic polypropylene (PP) block and at a higher temperature, supporting chain-walking, to obtain amorphous regioirregular PP block. Alternatively, a copolymerization of propene with ethene was used for the preparation of amorphous block. (c) 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 2440-2449
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
<a href="/en/project/GC15-15887J" target="_blank" >GC15-15887J: BRANCHING DESIGN IN POLYOLEFINS BY CATALYST VARIATION. THEORY MEETS EXPERIMENT.</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of polymer science. Part A, Polymer chemistry
ISSN
0887-624X
e-ISSN
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Volume of the periodical
55
Issue of the periodical within the volume
15
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
2440-2449
UT code for WoS article
000403815500003
EID of the result in the Scopus database
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