摘要
本文以二过碘酸合铜(Ⅲ)钾为氧化剂,聚丙烯酰胺(PAAM)自身为还原剂组成的氧化还原引发体系,在PAAM上引发丙烯腈接枝共聚合反应,获得了高接枝效率和高接枝百分比的产物,由红外光谱、扫描电镜及X射线衍射分析对接枝反应进行了表征,测定了各种条件对接枝参数的影响,并对引发机理进行了探讨。
The graft copolymerization of acrylonitrile (AN) onto polyacrylamide (PAAM) was studied by using potassium diperiodatocuprate (Ⅲ) as the initiator. It was found that potassium diperiodatocuprate-PAAM complex is an efficient redox initiator for the graft copoiymerization. The effects of the temperature, concentration of initiator and monomer (AN) on the reaction were investigated. Under the optimum conditions the efficiency of graft exceeds 95% and the graft percent of PAN in copolymer reaches 80%. The initiation mechanism is proposed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第10期1407-1410,共4页
Chemical Journal of Chinese Universities
关键词
丙烯腈
聚丙烯酰胺
接枝
引发剂
Potassium diperiodatocuprate (Ⅲ), Acrylonitrile, Polyacrylamide, Redox initiation
