Melting behavior and non‐isothermal crystallization kinetics of copolyamide 6/12

Abstract

Polymer crystallization obeys the laws of thermodynamics. Studying dynamic crystallization from melt to solid state may extend the general understanding of the crystallization behavior of polymers. In this work, non-isothermal crystallization kinetics of copolyamide 6/12 (CoPA6/12) with different copolymerization ratios were investigated by differential scanning calorimetry (DSC). Jeziorny modified Avrami equation, Ozawa equation and Liu-Mo’s method were applied to analyze the nonisothermal crystallization kinetics of CoPA6/12. The crystallization activation energy was evaluated using both Kissinger and Friedman methods. Results show that the incorporation of ω-laurolactam (LL) into polyamide 6 (PA6) decreases crystallization rate and increases crystallization activation energy. The findings further indicate that This document is the accepted manuscript version of the following article: Lin, C., Zou, F., Fernández-Ronco, M. P., Yan, Y., & Hufenus, R. (2019). Melting behavior and non-isothermal crystallization kinetics of copolyamide 6/12. Polymer Crystallization, 2(4), e10054 (10 pp.). https://doi.org/10.1002/pcr2.10054