An environmentally friendly triphasic catalytic system: Mn(salen) occluded in membranes based on PDMS/PVA
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/10/2012
19/10/2012
2010
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| Resumo |
The commercially available Jacobsen catalyst, Mn(salen), was occluded in hybrid polymeric membranes based on poly(dimethylsiloxane) (PDMS) and poly(vinyl alcohol) (PVA). The obtained systems were characterized by UV-vis spectroscopy and SEM techniques. The membranes were used as a catalytic barrier between two different phases: an organic substrate phase (cyclooctene or styrene) in the absence of solvent, and an aqueous solution of either t-BuOOH or H(2)O(2). Membranes containing different percentages of PVA were prepared, in order to modulate their hydrophilic/hydrophobic swelling properties. The occluded complex proved to be an efficient catalyst for the oxidation of alkenes. The new triphasic system containing a cheap and easily available catalyst allowed substrate oxidation and easy product separation using ""green"" oxidants. (C) 2010 Elsevier B.V. All rights reserved. CAPES CNPq FAPEMIG FAPESP FCT |
| Identificador |
APPLIED CATALYSIS B-ENVIRONMENTAL, v.100, n.1/Fev, p.55-61, 2010 0926-3373 http://producao.usp.br/handle/BDPI/20812 10.1016/j.apcatb.2010.07.010 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE BV |
| Relação |
Applied Catalysis B-environmental |
| Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE BV |
| Palavras-Chave | #Manganese salen complex #Polymeric catalytic membrane #Poly(dimethylsiloxane) #Poly(vinyl alcohol) #""Green chemistry"" #BIOMIMETIC ALKENE EPOXIDATION #POLYMERIC MEMBRANES #UNFUNCTIONALIZED OLEFINS #ASYMMETRIC EPOXIDATION #ENANTIOSELECTIVE EPOXIDATION #OXIDATION REACTIONS #SALEN COMPLEXES #ZEOLITE-Y #POLYDIMETHYLSILOXANE MEMBRANES #ALKANE HYDROXYLATION #Chemistry, Physical #Engineering, Environmental #Engineering, Chemical |
| Tipo |
article original article publishedVersion |
