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Effect of the composition on the phase size in immiscible blends with the viscosity ratio close to unity

✍ Scribed by Jijun Zeng; Masatoshi Aoyama; Hiroshi Takahashi

Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 297 KB
Volume: 89
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.12199

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✦ Synopsis

Abstract

The influence of the composition and interfacial tension on the phase size in immiscible polymer blends with a viscosity ratio close to unity has been investigated with poly(methyl methacrylate)/poly(ethylene terephthalate) blends and data from various works. For all the blends considered, the dispersed particle diameter (d) is proportional to the interfacial tension of the system. When the dispersed‐phase content (ϕ) is below 1%, there is minimal change of d with increasing ϕ. When ϕ is between 1 and 20%, d is proportional to ϕ^0.4^. It seems that the processing conditions do not influence the morphology significantly for blend systems with a viscosity ratio close to unity.© 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 1791–1799, 2003

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