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Citation: ZHAO Hong-Kai, QIAN Chun-Xiang. Research on the Kinetics of Anionic Polymerization of Caprolactam to Nylon Using Adiabatic Method[J]. Acta Physico-Chimica Sinica, ;2007, 23(03): 373-378. doi: 10.3866/PKU.WHXB20070317 shu

Research on the Kinetics of Anionic Polymerization of Caprolactam to Nylon Using Adiabatic Method

1.
(College of Materials Science and Engineering, Southeast University, Nanjing 210096, P. R. China; Research Institute of Green Construction Materials, Southeast University, Nanjing 210096, P. R. China)

Received Date: 18 August 2006
Available Online: 7 March 2007

Kinetic parameters were calculated based on the catalytic reaction systems of sodium caprolactam salt and N-75 biuret at the temperature of 145 ℃ to 160 ℃. The reaction order was approximately first order. The activation energy was between 73.2-77.1 kJ·mol-1 and the pre-exponential factor was between 2.9×1011-3.6×1011 mol1-n·s-1. The calculated reaction heat of 134.5-137.3 J·g-1 was in consonance with the literature value of 138.6 J·g-1. The adiabatic reaction kinetic model of caprolactam anion was constructed based on the existing research findings. The coincidence between the simulation results and the experimental data revealed that the model was reasonable and correct.
- Caprolactam;Nylon 6;Adiabatic reaction;Anion;Kinetics
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