摘要
利用６０Ｃｏγ预辐照接枝和胺肟化反应合成了聚丙烯胺肟（ＰＰＡＯ）螯合纤维。研究了影响接枝率、胺肟基团含量和吸附容量的因素。结果表明，接枝率随预辐照剂量、反应时间和单体浓度的增加而增加。羟胺溶液的ｐＨ＝７时，胺肟基团含量最高。吸附容量随胺肟基团含量的增加而增加，该纤维对金的饱和吸附容量为０．５１ｍｍｏｌ／ｇ干纤维，对钯和铜也有较高的吸附容量。
Polypropylene amidoxime chelate fiber was synthesized by preirradiation graft copolymerization and amidoximation The influence factors of grafting rate, content of amidoxime group and adsorption capacity have been studied The results of experiment showed that grafting rate increased with the increase of preirradiation dose, grafting reaction time, monomer concentration and grafting reaction temperature The highest content of amidoxime group is obtained atpH=7 of hydroxylamine solution The adsorption capacity for gold is0 51 mmol/g dry fiber
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
北大核心
1997年第3期134-138,共5页
Journal of Radiation Research and Radiation Processing
基金
吉林省青年科学基金
关键词
胺肟螯合纤维
辐照
接枝
吸附
金属离子
聚丙烯
Amidoxime chelate fiber
γ-irradiation
Grafting
Adsorption
Metal ions
Polypropylene
