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Título: Synthesis and characterization of hybrids derived from vermiculite chloropropyl and aliphatic diamines
Autor(es): Alves, Ana Paula de Melo
Silva, André Leonardo P.
Silva, Oberto G. da
Fonseca, Maria G. da
Arakaki, Luiza N. H.
Espínola, J. G. P.
Palavras-chave: Clay;Inorganic–Organic hybrids;Vermiculite
Data do documento: 2007
Editor: Journal of Thermal Analysis and Calorimetry
Citação: ALVES, Ana Paula M.; SILVA, André Leonardo P.; SILVA, Oberto G. da; FONSECA, Maria G. da; ARAKAKI, Luiza N. H. ; ESPÍNOLA, J. G. P. (2007)
Resumo: Silylation of vermiculite surface with organosilane (H3CO)3SiR, being R is the corresponding organic moieties –CH2CH2CH2Cl, were carried out to yield organofunctionalized nanomaterial, named as VCl. The product reacted subsequently with three aliphatic diamines H2N (CH2)nNH2 (n=2, 4 and 6). The new hybrids were characterized by elemental analysis, infrared pectroscopy, X-ray diffraction and thermogravimetry. The grafting chloro derivates onto surface amounted to 2.1 mmol g –1. The incorporation of alkyl amines was more effective for butyl>ethylene>hexyldiamines. The sequence is in agreement with thermogravimetry and elemental analysis data
Descrição: ALVES, Ana Paula de Melo et al. Synthesis and characterization of hybrids derived from vermiculite chloropropyl and aliphatic diamines. Journal of Thermal Analysis and Calorimetry, v.87, n. 3, p.771–774, 2007.
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