聚丙烯酰胺淀粉接枝共聚物的制备及其性能分析  

The preparation of polyacrylamide-starch graft copolymer and its property analysis

作　　者：杨德瑞[1] 李海燕[1] 李小瑞[1] 

机构地区：[1]陕西科技大学,陕西咸阳712081

出　　处：《中华纸业》2004年第3期45-47,共3页China Pulp & Paper Industry

摘　　要：在硝酸铈铵引发下,通过游离基共聚反应将聚丙烯酰胺接枝到淀粉分子链上(St-g-AM),合成了具有一定分子质量的接枝共聚物。通过对红外光谱(FT-IR)和差示扫描量热(DSC)的分析,研究了聚合物的结构性质,用粘度计法测定了聚合物的相对分子质量。扫描电镜(SEM)谱图分析表明:该共聚物可明显提高纸张的强度。The graft copolymer of polyacrylamide onto starch with ceric ammonium nitrate as initiator has been studied. The molecular weightof graft-copolymer is 1,090,000, which is determined by viscosity method. Based on the analysis of FT-IR and DSC , the structure of copolymeris studied.Pectrum of SEM indicates that the copolymer can improve the paper strength dramatically.

关 键 词：聚丙烯酰胺 淀粉 接枝共聚物 结构性质 相对分子质量 造纸助剂 阳离子化 制备 

分 类 号：TS74[轻工技术与工程—制浆造纸工程]