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Date of Award
1-1-1970
Access Type
Open Access Dissertation
Document type
dissertation
Degree Name
Doctor of Philosophy (PhD)
Degree Program
Polymer Science and Engineering
Abstract
Chapter I and Appendix A introduce the problem of a viscosity increase with increasing shear rate. The phenomenon is related to possible shifts in the glass transition, Tg. The WLF and Tammann-Hesse equations are used to correlate viscosity changes with shifts in Tg. The initial parameters considered which possibly affect Tg are frequency, shear rate and pressure.
DOI
https://doi.org/10.7275/8jbz-3441
Recommended Citation
Penwell, Richard Carlton, "Pressure effects in the capillary flow of newtonian and shear-thinning polymers." (1970). Doctoral Dissertations 1896 - February 2014. 579.
https://doi.org/10.7275/8jbz-3441
https://scholarworks.umass.edu/dissertations_1/579