On the viscosity-temperature behavior of
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Jeou-shyong Wang; Roger S. Porter
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Article
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1995
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Springer-Verlag
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English
⚖ 625 KB
Based on the free volume concept and the equation by Doolittle, an empirical equation is offered for the flow activation energy, E\*, for polymer melts for the range of over 150°C above glass transition temperature, Tg. This E\* represents the temperature coefficient of viscosity for the Newtonian r