Journal of Jianghan University(Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (3): 215-218.doi: 10.16389/j.cnki.cn42-1737/n.2016.03.004

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Synthesis of a Phosphorus-Containing Diamine Monomer with Asymmetric Structure

CHEN Weia，b，CHEN Yuhonga，CAI Chunfeia，b，DAI Yunlia，b，LIU Jiyana，b，HU Siqian*a，b   

  1. a. Key Laboratory of Optoelectronic Chemical Materials and Devices，Ministry of Education；b. School of Chemistry and Environmental Engineering，Jianghan University，Wuhan 430056，Hubei，China
  • Online:2016-06-28 Published:2016-07-21
  • Contact: HU Siqian

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Abstract: A new phosphorus-containing diamine monomer with asymmetric structure was synthesized with 4-aminoacetophenone，2，6-diethylaniline and DOPO by one step，and the p - toluenesulfonic acid as catalyst. This article also explored the suitable conditions for synthesis of the diamine monomer through orthogonal experiments，the reaction temperature was 130 ℃，the reaction time was 20 h，the amount of 2，6-diethylaniline was 3 times of DOPO molar quantity，the amount of p - toluenesulfonic acid was 4% of DOPO quality，and the yield was 60% . The substance′ s melting point is 247. 9 ℃ detected by DSC，characteristic vibration absorption peaks of functional groups of the diamine monomer were characterized by infrared spectrum and proton peaks were characterized by nuclear magnetic resonance hydrogen spectrum.

Key words: DOPO, phosphorus-containing diamine, asymmetric structure

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