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Possible role of force balance on entanglements
Author(s) -
Marrucci Giuseppe,
Greco Francesco,
Ianniruberto Giovanni
Publication year - 2000
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200008)158:1<57::aid-masy57>3.0.co;2-7
Subject(s) - balance (ability) , affine transformation , force balance , deformation (meteorology) , simple (philosophy) , detailed balance , function (biology) , stress (linguistics) , statistical physics , classical mechanics , mechanics , mathematics , physics , materials science , geometry , composite material , philosophy , epistemology , medicine , linguistics , evolutionary biology , physical medicine and rehabilitation , biology
The usual assumption of affine deformation of the strands of a polymeric network appears not to fulfil force balance over the nodes of the network in case such nodes are entanglements. In an effort to improve over the classical theory of Doi and Edwards for entangled polymers, a simple model is here proposed which is so constructed as to obey force balance. Explicit predictions for step strains are here obtained which compare very favourably with data, not only of damping function, but also of normal stress ratio.