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Influence of the elasticity ratio on the point of phase inversion in an immiscible polymer blend
Author(s) -
Astruc Marianne,
Navard Patrick
Publication year - 2000
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200001)149:1<81::aid-masy81>3.0.co;2-9
Subject(s) - elasticity (physics) , materials science , polydimethylsiloxane , shear rate , phase inversion , polymer , composite material , polymer blend , optical microscope , thermodynamics , viscosity , chemistry , scanning electron microscope , copolymer , membrane , physics , biochemistry
At a shear rate of 10 s −1 , a flow‐induced phase inversion has been observed in‐situ by optical microscopy on a blend of polydimethylsiloxane with solution of 50% of hydroxypropylcellulose in water for a range of concentrations. By increasing the shear rate up to 30 s −1 , the elasticity ratio of the components can be changed without changing the viscosity ratio. The resultant steady‐state morphology is not influenced by the variation of the elasticity ratio, contrary to a theoretical model.