Communication: Constitutive equations are derived for enthalpy recovery in glassy polymers after thermal jumps. The model is based on the theory of cooperative relaxation in a version of the trapping concept. It is demonstrated that a critical temperature Tcr and a critical degree of crystallinity fcr exist in a semicrystalline polymer above which structural relaxation vanishes.
|Number of pages||6|
|Journal||Macromolecular Rapid Communications|
|State||Published - 1 Jan 2000|