Comparison of Dielectric and Viscoelastic Relaxation Behavior of Polyisoprene Solutions:  Coherence in Subchain Motion

1996 ◽  
Vol 29 (1) ◽  
pp. 97-103 ◽  
Author(s):  
Hiroshi Watanabe ◽  
Min-Long Yao ◽  
Kunihiro Osaki
2011 ◽  
Vol 3 (3) ◽  
pp. 183-187
Author(s):  
Dionysios E. Mouzakis ◽  
Stefanos P. Zaoutsos ◽  
Nikolaos Bouropoulos ◽  
Constantine Bouropoulos ◽  
Nikolaos Ferakis ◽  
...  

2018 ◽  
Vol 155 ◽  
pp. 1-4 ◽  
Author(s):  
Kittisun Mongkolsuttirat ◽  
Jeffrey R. Smyth ◽  
Walter L. Brown ◽  
Richard P. Vinci

1994 ◽  
Vol 346 ◽  
Author(s):  
George W. Scherer

ABSTRACTThe beam-bending method was used to measure the effect of partial drying on the viscoelastic relaxation behavior and permeability of a two-step acid-base catalyzed silica gel. Both the elastic modulus (E) and the permeability (D) showed a power-law dependence on density (ρ): E ~ ρm, m ≈ 3.0; D ~ ρ-n, n ≈ 2.5. The viscosity of the network rose from ~1011 to ~1013 Pa·s, and was strongly dependent on age as well as density of the gel. The viscoelastic relaxation function was well described by the stretched exponential function with an exponent of 0.3–0.5.


1988 ◽  
Vol 49 (7) ◽  
pp. 1271-1293 ◽  
Author(s):  
J.C. Earnshaw ◽  
R.C. McGivern ◽  
P.J. Winch

Author(s):  
Manindra Kumar ◽  
Neelabh Srivastava

Background and Objective: Zwitterionic polymer electrolyte has been successfully synthesized using NH4PF6 salt. The conductivity of the synthesized polymer membrane is found to be of the order of 10-3Scm-1. Dielectric and Modulus properties of the polymer electrolyte have also been studied which showed well relaxation peaks with both temperature and salt concentrations. Result: This is well depicted with the loss tangent curve. Debye type relaxation behavior has observed from the electric modulus. Conclusion: Frequency dependent conductivity data (fitted with Jonscher's power law equation) confirmed the presence of NCL/SLPL type behavior in the studied frequency range.


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