摘要
用溶液聚合法 ,按自由基共聚机理制备丙烯酸 -丙烯酰胺共聚物 ,再通过Mannich反应进行改性 ,得到两性聚丙烯酸类水溶性高分子物。通过分散力的测定及研究表明:在阴离子型丙烯酸 -丙烯酰胺共聚物中引入阳离子基团 ,其分散性能得到较大提高;并随分子链中阴、阳离子基团含量的增加 ,分散性能增强;特性粘度为180~550mL/g时 。
Based on free radical polymerization mechanism, acrylic acid/ acrylic amide copolymer was prepared by solution polymerization process. Then the resultant product was modified through Mannich reaction, thus obtaining amphoteric polyacrylic acid based water soluble polymeric compound. Dispersibility testing and study of it showed that introduction of the cationic group into anionic acrylic acid/ acrylic amide copolymer enhanced its dispersibility remarkably. And dispersibility increased with the increase of cationic and anionic group in the molecular chain and relative molecular weight. Its intrinsic viscosity:550ml/ g.
出处
《印染助剂》
CAS
北大核心
2001年第3期4-6,共3页
Textile Auxiliaries