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Chemistry and Industry of Forest Products ›› 2019, Vol. 39 ›› Issue (4): 100-104.doi: 10.3969/j.issn.0253-2417.2019.04.014

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Synthesis and Characterization of Cardanol-based Epoxy Resin Containing A Cyclotriphosphazene Core

Junjie LI1,2(),Yun DONG1,Huaping ZHAO1,Hongxia MA2   

  1. 1. China Gezhouba Group Explosive Co. Ltd, Chongqing 401121, China
    2. School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2019-02-28 Online:2019-08-25 Published:2019-08-23


A novel six armed cardanol-derived epoxy resin containing a cyclotri phosphazene core(EHCPP) was successfully synthesized by two steps. Firstly, cardanol reacted with hexachlorocyclotriphosphazene(HCCP) to produce hexasubstituted cardanol with cyclotriphosphazene core(HCPP) with NaH as acid binding agent; secondly, EHCPP was generated by epoxidation of HCPP with the H2O2/HCOOH system, the synthesis conditions of EHCPP were optimized by orthogonal experiment, and the intermediate product HCPP and the final product EHCPP were analyzed and characterized by FT-IR and 1H NMR. The results showed that the optimum synthesis conditions of EHCPP were as follows n(double bond of cardanol):n(formic acid)=1.0:1.0, n(double bond of cadanol):n(H2O2)=1.0:1.8, catalyst TsOH 1% relative to the mass of HCPP, the reaction temperature 65℃, the reaction time 6 h, and the results of FT-IR and 1H NMR analysis showed that the structures of HCPP and EHCPP were basically consistent with the expected structures and its epoxy value was 4.1 mmol/g.

Key words: cardanol, hexachlorocyclotriphosphazene, cardanol-based epoxy resin

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