SBA-15 as a support for nickel-based catalysts for polymerization reactions

Pergher, Sibele Berenice Castellã; Schwanke, Anderson J.; Favero, Cristiano; Balzer, Rosana; Gusmão, Katia Bernardo

SBA-15 as a support for nickel-based catalysts for polymerization reactions

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dc.contributor.author	Pergher, Sibele Berenice Castellã
dc.contributor.author	Schwanke, Anderson J.
dc.contributor.author	Favero, Cristiano
dc.contributor.author	Balzer, Rosana
dc.contributor.author	Gusmão, Katia Bernardo
dc.date.accessioned	2020-07-14T14:34:02Z
dc.date.available	2020-07-14T14:34:02Z
dc.date.issued	2018
dc.description.resumo	Two mesoporous SBA-15 materials with different morphologies (spherical and fiber-shaped) were synthesized and evaluated as supports for nickel-based catalysts for polymerization reactions. The supports were pretreated with trimethylaluminum (TMA), and the catalyst dibromo-bis(4-amino-2,3,5,6-tetramethylimino)acenaphthene nickel(II) was attached to the supports and activated with TMA or MAO (methylaluminoxane). Characterization showed that the insertion of cetyltrimethylammonium bromide (CTABr) as a cosurfactant led to spherical SBA-15 with a decrease in particle and pore sizes to 4.8 nm compared to 6.5 nm in traditional fiber-shaped SBA-15. The spherical SBA-15 showed thicker walls than the fiber-shaped SBA-15, attributed to the increase in functional groups of the cosurfactant. The different spherical and fiber-shaped morphologies did not show any significant difference in the productivity of polyethylene. The catalyst supported on spherical SBA-15 materials showed 58% productivity compared to its homogeneous analogue using TMA as a cocatalyst	pt_BR
dc.identifier.citation	SCHWANKE, Anderson; FAVERO, Cristiano; BALZER, Rosana; GUSMÃO, Katia Bernardo; PERGHER, Sibele Berenice Castellã. SBA-15 as a Support for Nickel-Based Catalysts for Polymerization Reactions. Journal Of The Brazilian Chemical Society, Campinas, v. 29, n. 2, p. 328-333, fev. 2018. ISSN 1678-4790 versão online. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000200328&lng=en&nrm=iso. Acesso em: 14 jul. 2020. http://dx.doi.org/10.21577/0103-5053.20170144.	pt_BR
dc.identifier.doi	10.21577/0103-5053.20170144
dc.identifier.issn	0103-5053 (print), 1678-4790 (online)
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29598
dc.language	en	pt_BR
dc.publisher	Sociedade Brasileira de Química	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	SBA-15	pt_BR
dc.subject	Mesoporous	pt_BR
dc.subject	Morphological control	pt_BR
dc.subject	Polymerization	pt_BR
dc.title	SBA-15 as a support for nickel-based catalysts for polymerization reactions	pt_BR
dc.type	article	pt_BR