聚丙烯胺肟螯合纤维的合成及性能  

SYNTHESIS AND PROPERTIES OF POLYPROPYLENE AMIDOXIME CHELATE FIBER

作　　者：姚占海[1] 饶蕾[1] 徐俊[1] 杨慧丽[1] 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《高分子材料科学与工程》1995年第3期32-35,共4页Polymer Materials Science & Engineering

摘　　要：采用^（６０）Ｃｏ－γ射线预辐照方法合成了聚丙烯胺肟（ＰＰＡＯ）螯合纤维。研究了影响接枝率和胺肟基团含量的因素。结果表明，接枝率随预辐照剂量、单体浓度、反应时间和反应温度的增加而增加。羟胺溶液的ｐＨ＝７时，胺肟基团含量最高。胺肟化反应时间大于１．５ｈ，胺肟基团含量不再增加。该纤维对金的吸附容量为９９．１ｍｇ／ｇ干纤维，对钯和铜也有较好的吸附性能。The synthesis of polypropylene amidoxime chelate fiber by the method of preirradiation graft copolymerization is reported in this paper.The influence factors of grafting rate and amidoxime group component have been studied.the results of experiment showed that the grafting rate increased with the increase of preirradiation dose,grafting reaction time,monomer concentration and grafting reaction temperature.Aimdoxim group component is influenced by pH value,grafting rate,amidoximation reaction time and hydroxylamine solution concentration.The highest amidoxime group component is obtained at pH=7 hydroxylamine solution.The adsorption capacity for gold is 99.1mg/g dry fiber.

关 键 词：螯合纤维 胺肟 聚丙烯 合成 吸附纤维 

分 类 号：TQ342.86[化学工程—化纤工业]