摘要
为制备一种能螯合钯离子的新型含亚胺基团的吸附剂,首先对聚丙烯无纺布(PP)进行预辐照接枝丙烯腈(AN),然后进一步和二乙烯三胺(EDTA)反应。结果表明,胺化反应时间越长,腈基基团转化为亚胺基团的转化率越高。当温度高于120℃,有一部分聚丙烯溶解于胺化试剂中。考察了吸附时间和钯离子初始浓度对吸附量的影响。结果表明,制备的螯合型吸附剂对钯离子的吸附性能良好。对接枝后和胺化后的样品用红外光谱仪和差示扫描量热仪进行了表征。
In order to prepare a new type adsorbent with an affinity ligand for treatment of Pd （）,polypropylene （PP） fabrics modified with amine were prepared by radiation-induced grafting of acrylonitrile （AN） onto polypropylene fabrics and subsequent amination of poly-AN graft chains. Results show that the longer amination time gains the higher conversion ratio. When temperature is over 120 ℃,partial grafted fabrics melt in the reaction medium. Influence of some parameters such as initial concentration and adsorption time on the adsorption amount for palladium ions was investigated. Results suggeste that the chelating adsorbent possesses high adsorption performance toward palladium ions. The grafted and aminated fabrics were characterized by Fourier transform infrared spectroscopic（FT-IR） and differential scanning calorimetry （DSC）.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2010年第4期146-148,152,共4页
Polymer Materials Science & Engineering
基金
上海市重点学科项目(上海市重点学科基金(S30109))
关键词
接枝
聚丙烯
丙烯腈
螯合
钯离子
grafting
polypropylene
acrylonitrile
chelating
palladium
