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APPARENT ELONGATIONAL VISCOSITY OF DILUTE POLYMER SOLUTIONS
Korean Journal of Chemical Engineering, November 1996, 13(6), 554-558(5), 10.1007/BF02706020
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Abstract
Apparent elongational viscosity studies were made on dilute solutions of high molecular weight polymers using a fiber spinning apparatus designed for low shear viscosity liquids with substantial elongational effects. The experimental method involved the flow of solutions of polyacrylamide and poly(ethylene oxide) from a tube into an evacuated vessel. Experimental results showed that the apparent elongational viscosity obtained from the jet shape increased linearly with the stretch rate.
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References
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Astarita G, Nicodemo L, Chem. Eng. J., 1, 57 (1970)
Baid KM, Metzner AB, Trans. Soc. Rheol., 21, 237 (1977)
Chang JC, Denn MM, J. Non-Newton. Fluid Mech., 5, 369 (1979)
Chow A, Keller A, Muller AJ, Odell JA, Macromolecules, 21, 250 (1988)
Cottrell FR, Merill EW, Smith KA, J. Polym. Sci. A: Polym. Chem., 7, 1415 (1969)
Fuller GG, Cathey CA, J. Rheol., 31, 235 (1987)
Gupta RK, Sridhar T, "Elongational Rheometers," Rheological Measurement, Collyer, A.A. and Clegg, D.W., eds., Elsevier Applied Science, New York (1988)
Hudson NE, Ferguson J, Mackie O, Trans. Soc. Rheol., 18, 541 (1974)
MacSporran WC, J. Non-Newton. Fluid Mech., 8, 119 (1981)
Metzner AB, Metzner AP, Rheol. Acta, 9, 174 (1970)
Mewis J, Cleyn GD, AIChE J., 28, 900 (1982)
Moore CA, Pearson JRA, Rheol. Acta, 14, 436 (1975)
Odell JA, Muller AJ, Keller A, Polymer, 29, 1179 (1988)
Oliver DR, Bragg R, Rheol. Acta, 13, 830 (1974)
Spearot JA, Metzner AB, Trans. Soc. Rheol., 16, 495 (1972)
Sridhar T, Gupta RK, Rheol. Acta, 24, 207 (1985)
Vissmann K, Berwersdorff H, J. Non-Newton. Fluid Mech., 34, 289 (1990)
White JM, Polym. Eng. Rev., 1, 297 (1981)