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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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