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Type: Artigo de periódico
Title: Kinematic viscosities of poly(ethylene glycol) blends
Author: Ninni, L
Fung, WH
Meirelles, AJA
Abstract: Kinematic viscosities of binary and multicomponent mixtures containing poly(ethylene glycols) were measured as a function of temperature. Viscosities of the binary mixtures were used to calculate the excess molar Gibbs energy of activation for viscous flow G(*E). The G(*E) values are positive over the entire composition range and they increase as the difference in the molecular masses of the two polymers increases. The group-contribution viscosity model GC-UNIMOD was employed to correlate the viscosity of the binary systems and then to predict the viscosities of the multicomponent mixtures. Average absolute deviation around 3.5% was obtained for the viscosity calculations using the GC-UNIMOD model.
Country: EUA
Editor: Amer Chemical Soc
Rights: fechado
Identifier DOI: 10.1021/je0155249
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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