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Nucleation parameters for polymer crystallization from non-isothermal thermal analysis

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TextSeries: ; Colloid & Polymer Science, 266, p.999, 1988Contained works:

Kishore, K
Vasanthakumari, R

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Abstract: Differential scanning calorimetry (DSC)has been used to obtain kinetic and nucleation parameters for polymer crystallization under a non-isothermal mode of operation. The available isothermal nucleation growth-rate equation has been modified for non-isothermal kinetic analysis. The values of the nucleation constant (Ks)and surface free energies (o, oe)have been obtained for i-polybutene-1, i-polypropylene, poly(L-lactic acid), and polyoxymethylene and are compared with those obtained from isothermal kinetic analysis; a good agreement in both is seen.

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Differential scanning calorimetry (DSC)has been used to obtain kinetic and nucleation parameters for polymer crystallization under a non-isothermal mode of operation. The available isothermal nucleation growth-rate equation has been modified for non-isothermal kinetic analysis. The values of the nucleation constant (Ks)and surface free energies (o, oe)have been obtained for i-polybutene-1, i-polypropylene, poly(L-lactic acid), and polyoxymethylene and are compared with those obtained from isothermal kinetic analysis; a good agreement in both is seen.

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