Synthesis and characterization of hybrids derived from vermiculite chloropropyl and aliphatic diamines

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...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2007-03, Vol.87 (3), p.771-774
Main Authors: ALVES, Ana Paula M, SILVA, André Leonardo P, DA SILVA, Oberto G, DA FONSECA, Maria G, ARAKAKI, Luiza N. H, ESPINOLA, J. G. P
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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Summary: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. The incorporation of alkyl amines was more effective for butyl > ethylene > hexyldiamines. The sequence is in agreement with thermogravimetry and elemental analysis data.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-006-7855-0