Chemical Research in Chinese Universities ›› 2011, Vol. 27 ›› Issue (3): 358-360.

• Articles • Previous Articles     Next Articles

Synthesis, Characterization and Inhibition Effects of Vanadium Substituted Dawson-type Heteropoly Acids(Mo, P)

YIN Yan-bing1,2, YANG Yu-lin1*, FAN Rui-qing1, ZHU Yang-qing1,2 and SUN Ji-ru1,2   

  1. 1. Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, P. R. China;
    2. Department of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, P. R. China
  • Received:2010-03-17 Revised:2010-04-26 Online:2011-05-25 Published:2011-04-29
  • Contact: YANG Yu-lin E-mail:ylyang@hit.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.20971031, 21071035) and the Key Natural Science Foundation of the Heilongjiang Province, China(No.ZD201009).

Abstract: Four new vanadium substituted Dawson-type heteropoly acids H7[P2Mo17VO62]·39H2O(1), H8[P2Mo16V2O62]·41H2O(2), H9[P2Mo15V3O62]·51H2O(3) and H8[P2Mo14V4O62H2]·45H2O(4) were prepared respectively. Their structures were determined by IR and ICP. The inhibition effects of vanadium substituted Dawson-type heteropoly acids(Mo, P) on free radical polymerization of methyl methacrylate(MMA) were investigated by dilatometry. The results show that the rate of the polymerization of MMA decreases and the inhibition effects of the four heteropoly acids reach the inhibitor performance of hydroquinone at a certain ratio.

Key words: Heteropoly acid, Inhibition, Dilatometry