Title: Mannich reactin of copolymer of starch grafted acrylamide
Abstract: A cationic emulsion product was made by Mannich reaction of starch graft acrylamide(St-g-AM) copolymer in reverse emulsion.Methanal and dimethyl amine were used as amination reagent.The experimental results showed the best Mannich reaction with dimethyl amine followed the reaction with St-g-AM copolymer.The optimal condition: n(acrylamide)∶n(methanal)∶n(dimethyl amine)=1∶1∶1.2,θ=40-50 ℃,t=3-4 h,pH=5-6,amination degree was 24.6%,and specific viscosity of the product 920 mL/g.The product was superior to the similar products in dealing with China clay polluted water.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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