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The shear and transient isothermal extensional flow properties of a semicrystalline and an amorphous thermotropic liquid crystalline polymer are investigated. Independent estimates of the relationship between extensional viscosity and strain rate are derived from the measurement of (i) pressure loss in converging flow and (ii) filament tension in isothermal fibre spinning. The former material, a copolyester of hydroxybenzoic acid and naphthoic acid, flows readily in extension and shear. Results for the amorphou

Посилання на статтю:

Transient isothermal elongational flow of thermotropic liquid crystalline polymers / D. E. Turek* and G. P. Simon, F. Smejkal and M. Grosso // Polymer. – 1993. – Vol 34. – P. 204-206.

Transient isothermal elongational flow of thermotropic liquid crystalline polymers - Завантажити.