SOME PHYSICAL MEASUREMENTS IN THE ONE-PHASE REGION OF A WATER DEXTRAN POLY(ETHYLENE GLYCOL) SYSTEM

• Tipo: Artigo em Revista Científica Internacional
• Data: 1992

Autores

JOHANSSON, G (Autor) Outra; JOELSSON, M (Autor) Outra; BASTOS, M (Autor) FCUP

Revista

Título: Polymer

Vol. 33

Páginas: 152-155

ISSN: 0032-3861

Editora: Elsevier

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 15 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-007-5K9

DOI: 10.1016/0032-3861(92)90575-h

Abstract (EN): Concentration-dependent phase separation into two polymer-containing liquid phases has been studied for the polymer pair poly(ethylene glycol) and dextran. Below the point of phase separation, the light scattering of polymer mixtures was considerably greater than for single polymers in solution. Also the viscosity of polymer mixtures was larger than the sum of the viscosity increments of polymer solutions. On the other hand, both heat capacity and density were additive in the one-phase region. The possible solvent structure in mixed polymer solutions is discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4