Isothermal-crystallization kinetics and spherulite growth of aliphatic polyketone/polyamide-6 blends
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In this research, the morphologies, isothermal-crystallization kinetics, and spherulite growth of aliphatic polyketone/polyamide-6 blends were studied. A single glass-transition temperature (T g) was determined, and the composition dependence of T g for these blends was well described by the Kwei equation. The strong intermolecular interaction between the two polymer components was confirmed by melting-point depression. The isothermal-crystallization kinetics were analyzed on the basis of the Avrami approach. A linear increase in the radii of the spherulites with time was observed for all compositions. All the spherulites continued to grow at nearly identical growth rates. With increasing polyamide-6 content, the size of the spherulites in the polyketone/polyamide-6 blends gradually decreased, and the number of spherulites in the blends increased.
KeywordsPolyketone Polyamide-6 Crystallization kinetics Spherulite growth
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- 4.Asano, A., Nishioka, M., Kato, A., Takahashi, Y., Sawabe, H., Arao, M., Sato, S., Sato, H., Izumi, T., Olga, D., Ishikawa, D., Hasegawa, T., Okamura, T., Nagata, K., Hikasa, S. and Iwabuki, H., J. Polym. Prepr., 2008, 49: 682Google Scholar
- 11.Kwei, T.K., J. Polym. Sci., Part C: Polym. Lett., 1984, 22: 307Google Scholar
- 17.Al-Rawajfeh, A.E., Al-Salah, H.A. and Al-Rhael, I., Jordan J. Chem., 2006, 1: 155Google Scholar
- 32.Wunderlich, B., in “Macromolecular physics, Vol. 2”, Academic Press, New York, 1976Google Scholar