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1Dispersion of Co-poly Carboxylate Superplasticizer Containing Poiyether Side Chain显示文摘Free radical co-polymerization was employed to synthesize co-poly carboxylate (PC) superplasticizers with different amount of carboxyl and methyl polyethylene glycol (MPEG) side chain.Dispersion ability and retention of PC were compared with one another. The results show that increase of side chain is advantageous to dispersion, but it decreases when amount of MPEG is beyond a certain value which is different with the proportion of carboxyl. If the amount of carboxyl increases, the influence of side chain in copolymer on dispersion diminishes. Polyether side chain is advantageous to retention. And the author explained the mechanism of PC using the theory of steric repulsive force.左彦峰 王栋民 2006Journal of Wuhan University of Technology(Materials Science)2006,21,z1:2
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