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

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