ISSN:
0449-2951
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The Mooney theory for stress relaxation of polymer materials has been numerically evaluated in unmodified and modified forms. The modified expressions include such effects as molecular weight distributions and entanglement or polymer interaction distributions. The relaxation behavior was found to be highly dependent upon the number of interaction points per chain molecule particularly for small numbers. The distributions in molecular sizes and in the number of interaction points have a much smaller effect on the shapes of the relaxation curves. A comparison of the theoretical stress relaxation behavior is made with birefringence relaxation data. The region of correlation indicates a number of five interaction points per molecule of polystyrene at 10 wt. % in benzene.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1963.100010528
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