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On the topology of highly branched polyethylenes prepared by amine-imine nickel and palladium complexes: the effect of ortho-aryl substituents

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43915556" target="_blank" >RIV/60461373:22310/18:43915556 - isvavai.cz</a>

  • Result on the web

    <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/pi.5593" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/pi.5593</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/pi.5593" target="_blank" >10.1002/pi.5593</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    On the topology of highly branched polyethylenes prepared by amine-imine nickel and palladium complexes: the effect of ortho-aryl substituents

  • Original language description

    Series of nickel and palladium complexes bearing amine-imine ligands in various ortho-aryl and backbone positions were prepared and investigated in ethene polymerization. Ethene polymerization initiated by symmetrically ortho-substituted nickel and palladium amine-imine catalysts is controlled. Mono-substitution in the ortho-aryl positions of nickel complexes is not as efficient in protecting centers from chain transfer as di-substitution. Both the central metal and the size of the ortho-aryl substituent have a significant effect on the polyethylene (PE) topology. Based on detailed characterization by high temperature SEC-IR-, SEC with multi-angle laser light scattering and C-13 NMR data, PEs prepared by nickel amine-imine complexes have a linear rather than dendritic topology. In contrast, palladium amine-imine complexes with small ortho-aryl substituents at low ethene pressure were shown for the first time to form dendritic PEs with topology comparable to PEs formed by -diimine palladium catalyst. (c) 2018 Society of Chemical Industry

  • 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

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

Others

  • Publication year

    2018

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Polymer International

  • ISSN

    0959-8103

  • e-ISSN

  • Volume of the periodical

    67

  • Issue of the periodical within the volume

    7

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    11

  • Pages from-to

    946-956

  • UT code for WoS article

    000435099200017

  • EID of the result in the Scopus database