Chin. J. Org. Chem. ›› 2016, Vol. 36 ›› Issue (4): 844-849.DOI: 10.6023/cjoc201511029 Previous Articles     Next Articles



李雷a,b, 朱芝田a, 金凯凯a, 王佳佳a, 郑世军b, 房强a   

  1. a. 中国科学院上海有机化学研究所 上海 200032;
    b. 郑州大学材料科学与工程学院 郑州 450052
  • 收稿日期:2015-11-16 修回日期:2015-11-29 发布日期:2015-12-21
  • 通讯作者: 郑世军, 房强;
  • 基金资助:


Synthesis, Thermostability and Mechanical Properties of the Ether- Based Benzoxazine Resin with Benzoyl Moiety in the Side Chain

Li Leia,b, Zhu Zhitiana, Jin Kaikaia, Wang Jiajiaa, Zheng Shijunb, Fang Qianga   

  1. a. Key Laboratory of Synthetic. and Self-Assembly Chemistry for Organic. Functional Molecules, Shanghai Institute of Organic. Chemistry, Chinese Academy of Sciences, Shanghai 200032;
    b. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052
  • Received:2015-11-16 Revised:2015-11-29 Published:2015-12-21
  • Supported by:

    Project supported by the Natural Science Foundation of China (Nos. 21374131, 21574146).

A new ether-based benzoxazine monomer having a benzoyl moiety in the side chain is reported. This monomer showed good solubility in common organic solvents and low melting point (<125 ℃). Upon heating at high temperature, the monomer converted to an insoluble and infusible resin, which showed high thermostability with a 5 wt% weight loss temperature of 380 ℃ and a char yield of 66% at 800 ℃. Moreover, the resin exhibitedgood addhesion ability to metals with the shear strength of 6.5 MPa. For comparison, a benzoxazine without benzoyl unit was prepared. After cured, such a comparative benzoxazine showed a 5 wt% weight loss temperature of 322 ℃ and a char yield of 43%, and the shear strength of 4.7 MPa, respectively. These results indicate that the introduction of the a benzoyl moiety into the ether-based benzoxazine as the side chain can efficiently improve both of the thermostability and mechanical properties of the benzoxazine. This new benzoxazine could be used as matrix or producing the carbon/glass fiber reinforced composites, as well as the adhesives for binding the metals.

Key words: benzoxazine, benzoyl, thermostability, mechanical properties