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Journal of Thermal Analysis and Calorimetry

, Volume 111, Issue 2, pp 1039–1044 | Cite as

Thermal decomposition and kinetics studies on the 2,2-dinitropropyl acrylate–styrene copolymer and 2,2-dinitropropyl acrylate–vinyl acetate copolymer

  • G. Z. Zhang
  • H. C. Zheng
  • X. Xiang
Article

Abstract

In the present work, kinetics of thermal decomposition of 2,2-dinitropropyl acrylate–styrene copolymer (DNPA/St) and 2,2-dinitropropyl acrylate–vinyl acetate copolymer (DNPA/VAc) was investigated by differential scanning calorimetry (DSC). The influence of the heating rate (5, 10, 15, and 20 °C min−1) on the DSC behavior of the copolymer was verified. The results showed that, as the heating rate was increased, decomposition temperature of the copolymer was increased. Also, the kinetic parameters such as activation energy and frequency factor of the copolymer were obtained from the DSC data by the isoconversional methods proposed by Kissinger–Akahira–Sunose (KAS) and Flynn–Wall–Ozawa (FWO). Average activation energy obtained by KAS and FWO methods for the thermal decomposition reaction of DNPA/St and DNPA/VAc are 157.38 ± 0.27 and 147.67 ± 0.57 kJ mol−1, respectively. The rate constants for thermal decomposition calculated from the activation parameters showed the structural dependency. The relative stability of two copolymers under 50 °C was in this order: DNPA/St > DNPA/VAc. The results of thermogravimetry (TG) analysis revealed that the main mass changes for DNPA/St and DNPA/VAc occurred in the temperature ranges of 200–270 °C. The DSC-FTIR analysis of DNPA/St indicates that the band intensity of nitro and other groups increased haphazardly from 230 °C due to thermal decomposition.

Keywords

2,2-Dinitropropyl acrylate–styrene copolymer 2,2-Dinitropropyl acrylate–vinyl acetate copolymer Thermal decomposition Non-isothermal kinetics Activation energy 

Notes

Acknowledgements

The authors thank Professor H. Yoshida, Tokyo Metropolitan University for providing simultaneous DSC-FTIR. They also thank the National Science Foundation of China and CAEP for providing the financial support (Nos. 11076002 and 10676003).

References

  1. 1.
    Tanaka A, Sasaki K, Hozumi Y, Hashimoto O. Polymerizations of nitroalkyl acrylates. J Appl Polym Sci. 1964;8:1787–99.CrossRefGoogle Scholar
  2. 2.
    Takahashi K, Abe S, Namba K. The polymerization and copolymerization of nitroalkyl acrylates and nitroalkyl methacrylates. J Appl Polym Sci. 1968;121:1683–95.CrossRefGoogle Scholar
  3. 3.
    Lee K, Kim J, Lee B. Free radical polymerization of nitropropyl acrylates and methacrylates. J Appl Polym Sci. 2001;81:2929–35.CrossRefGoogle Scholar
  4. 4.
    Pourmortazavi SM, Hosseini SG, Rahimi-Nasrabadi M, Hajimirsadeghi SS, Momenian H. Effect of nitrate content on thermal decomposition of nitrocellulose. J Hazard Mater. 2009;162:1141–4.CrossRefGoogle Scholar
  5. 5.
    Musuc AM, Razus D, Oances D. Kinetics of exothermal decomposition of 2-nitrophenylhydrazine and 4-nitrophenylhydrazine using DSC non-isothermal data. J Therm Anal Calorim. 2007;90:807–12.CrossRefGoogle Scholar
  6. 6.
    Rotaru A, Kropidlowska A, Moanta A, Rotaru P, Sagal E. Thermal decomposition kinetics of some aromatic azomonoehters. J Therm Anal Calorim. 2008;92:233–8.CrossRefGoogle Scholar
  7. 7.
    Vlase T, Doca N, Vlase G, Bolcu C, Borcan F. Kinetics of non-isothermal decomposition of three irganox-type antioxidants. J Therm Anal Calorim. 2008;92:15–8.CrossRefGoogle Scholar
  8. 8.
    Sovizi MR, Anbaz K. Kinetic investigation on thermal decomposition of organophosphorous compounds. J Therm Anal Calorim. 2010;99:593–8.CrossRefGoogle Scholar
  9. 9.
    Zhang GZ, Wang F, Xiang X. Kinetic of 2,2-dinitropropyl acrylate polymerization and the copolymerization with acrylonitrile. Chin J Polym Mater Sci Eng. 2010;26(12):35–8.Google Scholar
  10. 10.
    Zhang GZ, Xiang X, Fang YX, Wang XC. Copolymerization of 2,2-dinitropropyl acrylate with styrene and property of copolymer. Chin J Energ Mater. 2011;19(3):258–61.Google Scholar
  11. 11.
    Zhang GZ, Wang F, Fang YX. Synthesis and characterization of energetic binder poly (2,2-dinitropropyl acrylate). Chin J Energ Mater. 2008;27(2):84–7.Google Scholar
  12. 12.
    Vyazovkin S, Wight CA. Isothermal and non-isothermal kinetics of thermally stimulated reactions of solids. Int Rev Phys Chem. 1998;17:407–33.CrossRefGoogle Scholar
  13. 13.
    Ozawa T. A new method of analyzing thermogravimetric data. Bull Chem Soc Jpn. 1965;38(1):1881–6.CrossRefGoogle Scholar
  14. 14.
    Flynn JH, Wall LA. General treatment of the thermogravimetry of polymers. J Res Natl Bur Stand A. 1966;70:487.CrossRefGoogle Scholar
  15. 15.
    Kissinger HE. Reaction kinetics in differential thermal analysis. Anal Chem. 1957;29:1702–6.CrossRefGoogle Scholar
  16. 16.
    Akahira T, Sunose T. Method of determining activation deterioration constant of electrical insulating materials. Res Rep Chiba Inst Technol. 1971;16:22–31.Google Scholar
  17. 17.
    Coats AW, Redfern JP. Kinetic parameters from thermogravimetric data. Nature. 1964;201:68–9.CrossRefGoogle Scholar
  18. 18.
    Opfermann J. Kinetic analysis using multivariate non-linear regression. J Therm Anal Calorim. 2000;60(2):641–58.CrossRefGoogle Scholar
  19. 19.
    Yan QL, Li XJ, Wang H, Nie LH. Thermal decomposition and kinetics studies on 1,4-dinitropiperazine (DNP). J Hazard Mater. 2008;151:515–21.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  1. 1.School of Chemical Engineering and EnvironmentBeijing Institute of TechnologyBeijingChina

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