Solubility of carboxylic acids in a matrix of uncross-linked polystyrene

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Bernardo, G (Autor) Outra; Vesely, D (Autor) Outra

Revista

Título: European Polymer Journal

Vol. 43

Páginas: 4983-4994

ISSN: 0014-3057

Editora: Elsevier

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 8 Citações

Outras Informações

ID Authenticus: P-008-T5B

DOI: 10.1016/j.eurpolymj.2007.09.007

Abstract (EN): Solubility diagrams of a series of carboxylic acids in a matrix of linear polystyrene have been measured using a gravimetric method on samples immersed in solvent, as reported earlier [Bernardo G, Vesely D. Eur Polym J 2007;43:938-48]. The results show that the amount Of Solvent, swelling the polymer, reaches an equilibrium saturation which has a unique and reproducible value for each system and temperature. An analysis based on Flory Huggins theory shows that all data presented here can be well interpreted with an interaction parameter in a simple form: chi = a + (b/T). An excellent fit can also be obtained using the van't Hoff equation. Ail analysis based on total and partial (Hansen) solubility parameters has also been investigated.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12