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Universal ratios in dynamics of dilute polymer solutions

✍ Scribed by Yasuhiro Shiwa; Yoshisuke Tsunashima

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
825 KB
Volume
197
Category
Article
ISSN
0378-4371

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✦ Synopsis

Experimental disagreement with the renormalization-group theoretical prediction for universal ratios concerning the initial decay rate and the intrinsic viscosity is critically examined through a dynamic solvent-polymer coupling parameter in the kinetic model of polymer solutions. Some tentative explanations for the discrepancy are presented.

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## Abstract We have analyzed chain conformations and the existence β€” or otherwise β€” of chain overlaps and entanglements in dilute polymer solutions (at concentrations __c__ < __C__^\*^, __c__^\*^ = critical concentration). The fundamental problem of existence of chain overlaps in dilute solutions i