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Physical aging enthalpy loss

Enthalpy relaxation reflects physical aging of polymers. The melt in equihbrimn has a certain number of holes. When cooled down below glass transition temperature T, the fraction of holes is not anymore in eqnilibrium due to the loss of conformations. The fraction of holes 77 is here the internal variable and rules the... [Pg.124]

See other pages where Physical aging enthalpy loss is mentioned: [Pg.317]    [Pg.27]    [Pg.257]    [Pg.377]    [Pg.166]    [Pg.357]    [Pg.185]    [Pg.607]    [Pg.204]    [Pg.275]    [Pg.842]   
See also in sourсe #XX -- [ Pg.178 ]



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Physical ageing

Physical aging

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