Publicação: H-bonding in entrapped water in poly(o-methoxyaniline): Results from a differential scanning calorimetry study
Carregando...
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
Differential scanning calorimetry (DSC) was used to investigate entrapped water in poly(o-methoxyaniline) (POMA) in powder form. Two endothermic peaks were attributed to removal of water molecules that were adsorbed with distinct energies. By obtaining thermograms at various heating rates, we succeeded in applying Kissinger's approaches to estimate activation energies for the water adsorbed. The values obtained were ca. 25 and 53 kJ/mol, which correspond to H-bonding interactions, probably at the amine and imine centers of POMA, respectively. (C) 2005 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
poly(o-methoxyaniline), H-bonding, entrapped water, differential scanning calorimetry
Idioma
Inglês
Como citar
Thermochimica Acta. Amsterdam: Elsevier B.V., v. 441, n. 2, p. 124-126, 2006.
