【摘要】 本文用淀粉接枝聚丙烯酰胺(S—g—PAM)与甲醛、二甲胺反应,合成了淀粉—胺甲基化聚丙烯酰胺接枝共聚物(S—g—APAM)。研究了各种因素对胺甲基化反应的影响。对钠型膨润土的絮凝性能研究表明:S—g—APAM与S—g—PAM及聚丙烯酰胺(PAM)相比,具有良好的絮凝效果。并研究了该胺甲基化的阳离子絮凝剂水溶液的流变学性质。更多还原

【Abstract】 In this paper, the graft copolymer of starchaminomethy lated polyacry-lamide ( S-g-APAM ) was prepared by the aminomethy lation of graftcopolymer of starch- polyacry lamide (S-g-PAM) with formalinanddimethyl amine. The factors effecting the aminomethy lation wereinvestigated.On the basis of the experimental results of floccu lation on Na-type bentonite suspention,S-g-APAM is a better flocculant compared withPAM, S-g-PAM.In addition the rheology properties of the aqueous solutionof S-g-APAM were studied.更多还原