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Differential scanning calorimetric study on free-radical polymerization of gem-dinitroalkyl acrylates and methacrylate

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Abstract

2,2-dinitropropyl acrylate (DNPA), 2,2-dinitrobutyl acrylate (DNBA) and 2,2-dinitrobutyl methacrylate (DNBMA) were synthesized and the kinetics of their free-radical polymerization in the presence of 2,2′-azobisisobutyronitrile (AIBN) were investigated by DSC in the non-isothermal mode. The kinetics of the free-radical polymerization as estimated by the Kissinger and Ozawa methods showed that the reaction is disfavoured by increasing steric hindrance around the acrylyl double bond. The rate constants calculated from the activation parameters showed the structural dependency. The polymerization kinetics revealed that the polymerizability of three monomers decreased due to the presence of substituent methyl groups on the acrylyl double bond and 2,2-dinitrobutyl on ester group. Thus, the polymerization tendency increased in the order DNPA>DNBA>DNBMA.

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Authors and Affiliations

  1. School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing, 100081, China

    G. Z. Zhang, S. H. Du & J. Wang

  2. Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, 621900, China

    X. C. Wang

Authors
  1. G. Z. Zhang
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  2. S. H. Du
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  3. J. Wang
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  4. X. C. Wang
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Correspondence to G. Z. Zhang.

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Zhang, G.Z., Du, S.H., Wang, J. et al. Differential scanning calorimetric study on free-radical polymerization of gem-dinitroalkyl acrylates and methacrylate. J Therm Anal Calorim 95, 433–436 (2009). https://doi.org/10.1007/s10973-008-9254-1

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  • DOI: https://doi.org/10.1007/s10973-008-9254-1

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