scholarly journals Telechelic ionomers studied by light scattering and dynamic mechanical measurements

1996 ◽  
Vol 112 (2-3) ◽  
pp. 155-162 ◽  
Author(s):  
Christophe Chassenieux ◽  
Ragnar Johannsson ◽  
Dominique Durand ◽  
Taco Nicolai ◽  
Pierre Vanhoorne ◽  
...  
Keyword(s):  
Light Scattering ◽  
Dynamic Mechanical ◽  
Mechanical Measurements ◽  
Telechelic Ionomers

Dynamic Properties of the Transient Network formed by Telechelic Ionomers Studied by Dynamic Light Scattering and Dynamic Mechanical Analysis

1995 ◽  
Vol 28 (25) ◽  
pp. 8504-8510 ◽  
Author(s):  
Ragnar Johannsson ◽  
Christophe Chassenieux ◽  
Dominique Durand ◽  
Taco Nicolai ◽  
Pierre Vanhoorne ◽  
...  
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Dynamic Mechanical Analysis ◽  
Dynamic Properties ◽  
Mechanical Analysis ◽  
Dynamic Mechanical ◽  
Transient Network ◽  
Telechelic Ionomers

Changes in the Dynamic Modulus during Thermal Degradation of Polyisoprene Vulcanizates

1980 ◽  
Vol 53 (4) ◽  
pp. 944-949 ◽  
Author(s):  
Shoichiro Yano
Keyword(s):  
Thermal Degradation ◽  
Dynamic Modulus ◽  
Dynamic Method ◽  
Activation Energies ◽  
Time Axis ◽  
Frequency Dependent ◽  
Dynamic Mechanical ◽  
Mechanical Measurements

Abstract Thermal degradation of IR is investigated in air and in N2 by dynamic mechanical measurements. In this dynamic method, the change in the relative dynamic modulus is found to be frequency dependent, but the data at various frequencies can be superimposed upon each other by shifting along the time axis. Changes in relative modulus as a function of time in air and in N2 can be expressed by Equation (1), which contains two exponential terms. The activation energies for k1 and k2 are 84 and 57 kj/mol in air, and 61 and 57 kJ/mol in N2, respectively.

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