Synthesis of colloidal magnetite nanocrystals using high molecular weight solvent

Autor(es)

Goncalves, Ricardo H. ^[1] ; Cardoso, Claudio A. ^[2] ; Leite, Edson R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Fed Sao Carlos, Dept Phys, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Materials Chemistry; v. 20, n. 6, p. 1167-1172, 2010.
• Citações Web of Science: 37

Resumo

In this work, we describe a single-step synthetic route to obtain magnetic nanocrystals (MN), Fe(3)O(4) nanocrystals, soluble in different solvents. To synthesize grafted MN in a single step, we used a high molecular weight solvent (a polyol) that can be attached to the particle surface, which then transfers its solubility to the particle. Using polyols with different molecular weights and polarity enabled us to control the size, aggregation and morphology. The solubility behavior of the MN confirms our success in transferring the solubility of the adsorbed polymer to the nanocrystal. (AU)

• Processo FAPESP: 98/14324-0 - Multidisciplinary Center for Development of Ceramic Materials
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 07/51002-2 - Compósitos moleculares funcionais derivados de poliuretanas: síntese e caracterização
• Beneficiário: Edson Roberto Leite
• Modalidade de apoio: Auxílio à Pesquisa - Regular