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Multicomponent systems subject to a tensile force

Only crystallization induced by a tensile type deformation has been discussed here. Other types of deformation such as biaxial extension, shear and torsion should also be considered. Such deformations have been studied and analyzed for amorphous networks. However, there is a paucity of experimental data, as well as analysis, of the equilibrium aspects of crystallization induced by these deformations. In one available report the observed melting temperature of natural rubber networks increased substantially when subject to biaxial deformation.(41) An increase in melting temperature of about 50 °C was found for a biaxial stretching ratio of three. This increase is much larger than that observed for natural rubber when crystallized in simple extension. [Pg.381]

Melting and crystallization of oriented polymers also occurs when in contact with either diluent or a solution containing monomeric solutes. Although the introduction of additional components and phases results in some alterations of the analyses, the fundamental physical processes involved are not changed. These conditions hold for the hbrous proteins since the necessary experiments can only be carried out either in the presence of diluent or by appropriate chemical reactions. [Pg.381]

The appropriate relation for a multicomponent system that corresponds to Eq. (8.7) is [Pg.381]

The requirement for equihbrium between the crystalline and amorphous phases is that the function G — fL be a minimum when 8ni moles of component i are transferred from one phase to another at constant p,T, f. Hence [Pg.381]

Similarly, when a supernatant phase (designated by the superscript s) comprised of monomeric components is present, then for the amorphous portion of the fiber to [Pg.381]


See other pages where Multicomponent systems subject to a tensile force is mentioned: [Pg.381]    [Pg.381]    [Pg.383]    [Pg.385]    [Pg.387]    [Pg.381]    [Pg.381]    [Pg.383]    [Pg.385]    [Pg.387]   


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Systems multicomponent

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