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Artigo Revisado por pares
BIBTEX RIS

Preferential adsorption behavior of poly(vinylpyrrolidone) in tetrahydrofuran-water mixtures

1986; Elsevier BV; Volume: 113; Issue: 2 Linguagem: Inglês

10.1016/0021-9797(86)90182-7

ISSN

1095-7103

Autores

Ligia Gargallo, María Inés Mun ̃oz, Hernán Ríos, Deodato Radić,

Tópico(s)

Inorganic and Organometallic Chemistry

Resumo

The preferential adsorption behavior of poly(vinylpyrrolidone) (PVP) and one alternating copolymer of vinylpyrrolidone-co-maleic acid (CP1H) in the binary solvent mixture THF/water were studied. Water is preferentially adsorbed by PVP and THF by the copolymer at low THF compositions. Both systems show enhancement of the solubility and an inversion point in the preferential solvation. The results are discussed in terms of specific interactions between solvents and side chains of the polymers. The conformational arrangements of the side groups are considered.

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