Treasure IP Group, LLC
Preparation method for polymer and applications thereof
The present invention provides a method for preparing a polymer and a use of the polymer. The resulting polymer is used as a dispersant for an aqueous dispersion of a hydraulic binder and/or a latent hydraulic binder, such that water-reducing rate is improved, and suitable control of air content can be achieved, thereby improving the strength of concrete. The method for preparing a polymer includes polycondensation of a polyether macromonomer A of a specific structure, a monomer B and an aldehyde C to obtain the polymer. The monomer B is phenylsulfonic acid, p-/o-aminophenylsulfonic acid, p-/o-hydroxylbenzoic acid, p-/o-aminobenzoic acid, p-/o-hydroxylphenylsulfonic acid, or a phosphoric acid group or phosphorous acid group-containing monomer of a specific structure. A molar ratio of the polyether macromonomer A and the monomer B is 1:(0.5 to 12).
SOBUTE NEW MATERIALS CO., LTD.
C C C C C C Y C C C C C
C08G C04B C08G C08G C08G C04B Y02W C04B C04B C08G C04B C08G
inventional inventional inventional inventional inventional additional additional inventional inventional inventional inventional inventional
Yong Qianping Jiaping Tao Shimin Shuai Jianfeng
Yang Ran Liu Wang Fan Qi Ma