Synthesisand characterization of hybrids derived from vermiculite chloropropyl andaliphatic diamines |
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| Authors: | Ana Paula M. Alves André Leonardo P. Silva Oberto G. da Silva Maria G. da Fonseca Luiza N. H. Arakaki J. G. P. Espínola |
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| Affiliation: | 1.Departamento deQuímica, CCEN,Universidade Federal da Paraíba(UFPB),Jo?o Pessoa,Brazil |
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| Abstract: | 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 spectroscopy, 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. |
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| Keywords: | clay inorganic– organic hybrids vermiculite |
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