ISSN:
0449-2978
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Oscillatory shear measurements have been made on a range of anionic polystyrene melts of molecular weights 1000--500,000. For M 〈 5000 the polymer chain is too short to act as a Gaussian coil and hence the compliance of the melt is very low. For 10,000 〈 M 〈 100,000 the compliance of the melt follows the Rouse model of the elasticity of isolated polymer molecules. It is necessary to use the Ferry, Landel and Williams extension of the Rouse theory for M 〉 40,000 to allow for the effect of entanglements on the complex modulus. For M 〉 200,000 the entangelment network dominates the compliance and the Rouse theory is no longer applicable.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1971.160090204
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