Polymer–solvent interaction parameters and efficiency of crosslinking of ethylene–propylene copolymers

1968 ◽  
Vol 12 (8) ◽  
pp. 1947-1957 ◽  
Author(s):  
U. Flisi ◽  
G. Crespi
Keyword(s):  
Interaction Parameters ◽  
Solvent Interaction ◽  
Ethylene Propylene ◽  
Polymer Solvent

A New Look at Measurements of Network Density

1986 ◽  
Vol 59 (1) ◽  
pp. 138-141 ◽  
Author(s):  
Robert A. Hayes
Keyword(s):  
Hysteresis Loop ◽  
Interaction Parameters ◽  
Network Density ◽  
Stress Strain ◽  
Solvent Interaction ◽  
Solvent Method ◽  
Strain Data ◽  
Good Agreement ◽  
Polymer Solvent ◽  
New Look

Abstract A two-solvent method for determining the polymer-solvent interaction parameters independently of stress-strain data is described. The values obtained are much lower than those reported previously. Network densities calculated from swelling data and these interaction parameters are in good agreement with those calculated from the return portion of a hysteresis loop at high elongations.

Polymer–solvent interaction parameters in polymer solutions at high polymer concentrations

2002 ◽  
Vol 969 (1-2) ◽  
pp. 245-254 ◽  
Author(s):  
C. Etxabarren ◽  
M. Iriarte ◽  
C. Uriarte ◽  
A. Etxeberrı́a ◽  
J.J. Iruin
Keyword(s):  
Polymer Solutions ◽  
Interaction Parameters ◽  
High Polymer ◽  
Solvent Interaction ◽  
Polymer Solvent

Polymer—Solvent Interaction Parameter and Creep of Ethylene—Propylene Rubber

1964 ◽  
Vol 37 (4) ◽  
pp. 894-903 ◽  
Author(s):  
T. J. Dudek ◽  
F. Bueche
Keyword(s):  
Energy Density ◽  
Interaction Parameter ◽  
Cohesive Energy ◽  
Tensile Creep ◽  
Solvent Interaction ◽  
Ethylene Propylene ◽  
Cohesive Energy Density ◽  
Creep Curves ◽  
Ethylene Propylene Rubber ◽  
Polymer Solvent

Abstract The polymer—solvent interaction parameter for an ethylene—propylene ter-polymer containing 53 mole-% ethylene was determined as a function of degree of crosslinking in n-heptane and benzene. A well characterized EPR gum vulcanizate was used to obtain the polymer-solvent interaction parameter in fourteen solvents, and the cohesive energy density of the terpolymer was evaluated. The composite tensile creep curves for gum and filled EPR vulcanizates were obtained and compared with SBR creep curves.

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