On the viscosity-temperature behavior of
โ
Jeou-shyong Wang; Roger S. Porter
๐
Article
๐
1995
๐
Springer-Verlag
๐
English
โ 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 150ยฐC above glass transition temperature, Tg. This E\* represents the temperature coefficient of viscosity for the Newtonian r