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Rheological properties of polymethyl mechacrylate blends with elastomers as a function of thermodynamic interaction of the components and the degree of blend dispersion

Authors
Journal
Polymer Science U S S R
0032-3950
Publisher
Elsevier
Publication Date
Volume
30
Issue
5
Identifiers
DOI: 10.1016/0032-3950(88)90332-2
Disciplines
  • Physics

Abstract

Abstract The rheological properties of impact resistant compositions obtained by melt mixing are studied, using model polymethyl methacrylate mixtures with various elastomers. The thermodynamic interaction of the polymers was evaluated from the Flory interaction parameter, from the solubility limits of the rubbers in the polymethyl methacrylate, and from the Hildebrand equation. The decrease in effective viscosity of the mixture blends is mainly due to deformation of the low viscosity disperse phase. The high viscosities of the blends containing strongly interacting components is due to the effect of the phase interface.

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