Use este identificador para citar ou linkar para este item:
https://repositorio.ufms.br/handle/123456789/5295
Tipo: | Artigo de Periódico |
Título: | A comparative study of polymer-dye interaction |
Autor(es): | Nandini, R. Vishalakshi, B. |
Abstract: | The interaction between an anionic dye Methyl Orange and two poly cations namely, Poly (N-vinyl-4-methylpyridiniumiodide), (PC1) & Poly (vinylbenzyltriphenylphosphoniumchloride), (PC2) has been investigated by spectrophotometric method. The polymers are observed to induce metachromasy in the dye as evidenced from the considerable blue shift in the absorption maximum of the dye. The interaction constant and thermodynamic parameters of interaction have been determined by absorbance measurements at the metachromatic band. The effect of additives such as ionic salts, alcohols, urea and polyelectrolytes on the reversal of metachromasy has been studied and used to determine the stability of the metachromatic complex and to understand the nature of binding. |
Palavras-chave: | Citrus sinensis Termodinâmica Corantes Polímeros Thermodynamics Coloring Agents Polymers Methyl Orange Polycations Metachromasy Stoichiometry Thermodynamic Parameters |
CNPq: | CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
Idioma: | eng |
País: | Brasil |
Editor: | Fundação Universidade Federal de Mato Grosso do Sul |
Sigla da Instituição: | UFMS |
Tipo de acesso: | Acesso Aberto Attribution-NonCommercial-NoDerivs 3.0 Brazil |
metadata.dc.rights.uri: | http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
URI: | https://repositorio.ufms.br/handle/123456789/5295 |
Data do documento: | 21-Ago-2009 |
Aparece nas coleções: | Orbital: The Electronic Journal of Chemistry |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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A comparative study of polymer-dye interaction.pdf | 204,6 kB | Adobe PDF | Visualizar/Abrir |
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