scholarly journals Measurements of Viscoelastic Properties of Linear Polymers in Dilute and Semidilute Solutions with a Flow Birefringence Method

1986 ◽  
Vol 18 (12) ◽  
pp. 911-917 ◽  
Author(s):  
Fumitoshi Suzuki ◽  
Koichiro Hori ◽  
Norio Kozuka ◽  
Hideaki Komoda ◽  
Kimiaki Katsuro ◽  
...  
Keyword(s):  
Viscoelastic Properties ◽  
Flow Birefringence ◽  
Linear Polymers ◽  
Semidilute Solutions

Viscoelastic properties of linear polymers in the high-elastic state

1971 ◽  
Vol 9 (7) ◽  
pp. 1153-1171 ◽  
Author(s):  
G. V. Vinogradov ◽  
E. A. Dzyura ◽  
A. Ya. Malkin ◽  
V. A. Grechanovski??
Keyword(s):  
Viscoelastic Properties ◽  
Linear Polymers ◽  
Elastic State

A predictive multiscale computational framework for viscoelastic properties of linear polymers

Polymer ◽  
2012 ◽  
Vol 53 (25) ◽  
pp. 5935-5952 ◽  
Author(s):  
Ying Li ◽  
Shan Tang ◽  
Brendan C. Abberton ◽  
Martin Kröger ◽  
Craig Burkhart ◽  
...  
Keyword(s):  
Viscoelastic Properties ◽  
Linear Polymers ◽  
Computational Framework

Viscoelastic properties of linear polymers in the fluid state and their transition to the high-elastic state

1980 ◽  
Vol 20 (17) ◽  
pp. 1138-1146 ◽  
Author(s):  
G. V. Vinogradov ◽  
Yu. G. Yanovsky ◽  
L. V. Titkova ◽  
V. V. Barancheeva ◽  
S. I. Sergeenkov ◽  
...  
Keyword(s):  
Viscoelastic Properties ◽  
Linear Polymers ◽  
Elastic State ◽  
Fluid State

Viscoelastic Properties of Rubber Networks

1975 ◽  
Vol 48 (5) ◽  
pp. 981-994 ◽  
Author(s):  
P. Thirion
Keyword(s):  
Viscoelastic Properties ◽  
Dynamic Properties ◽  
Mechanical Energy ◽  
Filler Particle ◽  
Polymer Networks ◽  
Relaxation Times ◽  
Low Frequency ◽  
Linear Polymers ◽  
Approach To Equilibrium ◽  
Sinusoidal Vibration

Abstract The molecular theory of Rouse, Zimm, and Bueche correctly accounts for the viscoelastic properties of polymers in very dilute solution and, to a large extent, for those of polymers in bulk or in concentrated solution, as long as their mean molecular weight is below about 20 000. Above this MW limit, relaxation times appear which are longer than those provided for in this theory. The “viscoelastic plateau”, which then appears in the long relaxation time region of the dynamic spectrum, is ascribed to entanglements of molecular chains which behave like temporary crosslinks. An analogous phenomenon occurs in the same way in permanent polymer networks, such as rubber vulcanizates. In this case one finds abnormally slow relaxation or creep rates during the approach to equilibrium, as well as increased low-frequency mechanical energy losses under forced sinusoidal vibration. The presence of colloidal fillers, such as carbon blacks used to reinforce rubbers, also seems to increase this hysteresis within the polymer matrix, independent of thixotropic effects which result from the reversible rupture of filler particle aggregates under large-amplitude cyclic deformations. We propose to analyze here the results (obtained jointly at the Institut Français du Caoutchouc and at the laboratory of Professor J. D. Ferry, University of Wisconsin) of measurements over the entire rubbery spectrum of the dynamic properties and of stress relaxation on vulcanizates of natural rubber, cis-polybutadiene, and styrene-butadiene copolymer (SBR) in the absence of secondary crystallization or aging phenomena. Then we examine the interpretation of the behavior of these materials, both at low frequency and during the approach to equilibrium, by analogy with the theories of the “viscoelastic plateau” of linear polymers.

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