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Synthesis of new polyether polycarboxylate superplasticizer

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Abstract

The effects of various factors on the synthesis process and the performances of product, including batch feeding way and the dosage of the radical initiator, the system concentration, the reaction temperature and the reaction time were discussed. A kind of polycarboxylate superplasticizer with allyl alcohol polyethylene glycol, maleic anhydride and methacrylic acid sulfonic sodium as main raw materials has been synthesized. Their relative effectiveness as dispersants was evaluated in cement paste by measuring paste fluidity. The optimum parameters of technology and the appropriate proportion of raw materials were obtained. As a result, the new high performance superplasticizer suitable for high-performance concrete has been synthesized. The structure of copolymer was characterized and analyzed by FT-IR spectra. Results indicated that product copolymer structure was consistent with the ideal molecular structure designed.

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Authors and Affiliations

  1. Materials College, Chongqing University, Chongqing, 400030, China

    Xiuxing Ma  (麻秀星)

  2. Xiamen Academy of Building Research Group, Xiamen, 361004, China

    Xiuxing Ma  (麻秀星)

Authors
  1. Xiuxing Ma  (麻秀星)
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Correspondence to Xiuxing Ma  (麻秀星).

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Funded by the National Natural Science Foundation of China(No. 50972170)

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Ma, X. Synthesis of new polyether polycarboxylate superplasticizer. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 25, 799–802 (2010). https://doi.org/10.1007/s11595-010-0095-y

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  • DOI: https://doi.org/10.1007/s11595-010-0095-y

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