How dilute are dilute solutions in extensional flows?
نویسندگان
چکیده
منابع مشابه
How dilute are dilute solutions in extensional flows?
e investigate the concentration dependence of the characteristic relaxation time of dilute polymer olutions in transient uniaxial elongational flow. A series of monodisperse polystyrene solutions of ve different molecular weights 1.8 106 M 8.3 106 g/mol with concentrations spanning ve orders of magnitude were dissolved in two solvents of differing solvent quality diethylphthalate and oligomeric...
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The rheological behaviour of polymer melts and dilute polymer solutions in elongational flow have been extensively examined through experiments and theoretical predictions. However, an experimental study to understand the extensional rheological properties of polymer solutions in the semi-dilute regime is currently lacking in terms of a systematic examination of the effects of concentration and...
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ژورنال
عنوان ژورنال: Journal of Rheology
سال: 2006
ISSN: 0148-6055,1520-8516
DOI: 10.1122/1.2357595