Journal of Guangdong University of Technology ›› 2006, Vol. 23 ›› Issue (2): 24-28.

• Comprehensive Studies • Previous Articles     Next Articles

Synthesis of High-Performance Water-reducing Agent WD-1 by Process of Esterification-Copolymerization

  

  1. (Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510090,China)
  • Online:2006-04-06 Published:2006-04-06

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Abstract: In this paper,high performance polycarboxylic type water-reducing agent WD-1 is synthesized in following steps: 1.Methyl acrylic acid is esterized with polyethylene glycol;2.The ester intermediate is polymerized with sodium allylsulfonate and methyl acrylic acid.The polymerization degree of PEG(n),the temperature of esterification(T)and their effect on major performance of water reducing agent WD-1 are discussed.The product is characterized by IR;and the total performance is tested.The results show that the water-reducing ratio of WD-1 is 26.9% when n=9 and T=80?℃.

Key words: polycarboxylic； water-reducing agent； esterification； copolymerization；

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