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Sempere Alemany, Francisco Javier.pdf - RUA - Universidad de ...

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120 Antece<strong>de</strong>ntes<br />

Figura 2.30. (A) Curvas DSC a diferentes velocida<strong>de</strong>s <strong>de</strong> enfriamiento<br />

y (B) Representación <strong>de</strong> log {-ln [1-(α(T)]} vs. log ψe para<br />

polietilenterftalato (PET).<br />

(vi) Método <strong>de</strong> Avrami modificado para reacciones <strong>de</strong> cristalización. El<br />

método <strong>de</strong> Avrami para calcular constantes cinéticas mediante DSC ha sido<br />

modificado por Zhiying y col. (1993) con el fin <strong>de</strong> <strong>de</strong>scribir la cristalización <strong>de</strong><br />

polímeros. La ecuación modificada <strong>de</strong> Avrami quedaría:

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