Kinetics of non-isothermal crystallization of coconut-based cholesteryl ester: Avrami and Ozawa approaches

Authors

Joihren F. Joson ⋅ PH National Institute of Physics, University of the Philippines Diliman
Liza T. Davila ⋅ PH National Institute of Physics, University of the Philippines Diliman
Zenaida B. Domingo ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Kinetics of non-isothermal crystallization of cocobased cholesteryl ester was performed by differential scanning calorimetry under various heating rates. Different analysis methods were used to describe the process of non-isothermal crystallization. The results showed that the Avrami equation could describe the system very well. However, the Ozawa analysis failed. A probable reason is the difference in the crystallization kinetics at high and low relative crystallization. The phase transitions of the coco-based cholesteryl ester were also observed through optical polarizing microscopy.

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Issue

2001: Proceedings of the 19th Samahang Pisika ng Pilipinas Philippine Physics Congress

Article ID

SPP-2001-W3B-4

Section

Liquid Crystals

Published

2001-10-24

How to Cite

[1]

JF Joson, LT Davila, and ZB Domingo, Kinetics of non-isothermal crystallization of coconut-based cholesteryl ester: Avrami and Ozawa approaches, Proceedings of the Samahang Pisika ng Pilipinas 19, SPP-2001-W3B-4 (2001). URL: https://proceedings.spp-online.org/article/view/SPP-2001-W3B-4.