Hybrid Catalysts for Acetylenes Polymerization Prepared by Anchoring [Rh(cod)Cl]2 on MCM-41, MCM-48 and SBA-15 Mesoporous Molecular Sieves - The Effect of Support Structure on Catalytic Activity in Polymerization of Phenylacetylene and 4-ethynal- N-(4-[t

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F03%3A54030166" target="_blank" >RIV/61388955:_____/03:54030166 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Hybrid Catalysts for Acetylenes Polymerization Prepared by Anchoring [Rh(cod)Cl]2 on MCM-41, MCM-48 and SBA-15 Mesoporous Molecular Sieves - The Effect of Support Structure on Catalytic Activity in Polymerization of Phenylacetylene and 4-ethynal- N-(4-[t

Original language description

Hybrid catalysts for acetylenes polymerizations were prepared by anchoring [Rh(cod)Cl]2 complex on siliceous mesoporous molecular sieves differing in pore size and architecture (MCM-41, MCM-48 and SBA-15) via 3-aminopropyltrimethoxysilane linker. In comparison with [Rh(cod)Cl]2 used as homogeneous catalyst, all hybrid catalysts exhibited comparable or even higher catalytic activity in the polymerization of phenylacetylene and N-(4-trimethylsilylethynylbenzylidene)-4-ethynylaniline. The initial polymerization rate increased with increasing accessibility of mesoporous surface of catalysts in order of support: MCM-41< MCM-48 < SBA-15. Molecular weights of polymer prepared increased in reverse order of supports suggesting the space limitations in the poressuppress the chain growth termination reactions. No effect of catalyst support on the microstructure of formed polymers was found.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2003

Confidentiality

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

Name of the periodical

Collection of Czechoslovak Chemical Communications

ISSN

0010-0765

e-ISSN

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Volume of the periodical

68

Issue of the periodical within the volume

10

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

16

Pages from-to

1861-1876

UT code for WoS article

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EID of the result in the Scopus database

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