摘要
以壳聚糖为原料,先分别与环硫氯丙烷和环氧氨丙烷交联,再分别与 N,N-二乙氨基环硫丙烷和 N,N-二乙氨基环氧丙烷反应合成了两种新型的含硫(氧)氮的螯合树脂 PCSN 和PCON,并用静态法测定了树脂对金属离子的吸附容量,还与壳聚糖作了比较。壳聚糖引进巯基、氨基,可有效地提高树脂对贵金属离子的吸附能力。
Two new chelating resins PCSN and PCONcontaining sulphur(or oxygen)and nitrogen havebeen synthesized by the reactions of crosslinkedchitosan with N,N-diethylaminomethylthioraneand N,N-diethylaminomethyloxorane respectively.The adsorption properties of the chelating resinsfor Ag^+,Au^(3+),Pd^(2+),Pt^(4+),Hg^(2+),Cu^(2+),Zn^(2+)havebeen measured through static method.It wasrevealed that the chelating resin PCSN(whichcontained sulphur and nitrogen)had greateradsorption capacities for noble metal ions Ag^+,Au^(3+),Pd^(2+),Pt^(4+)than the resin PCON(whichcontained oxygen and nitrogen).For Hg^(2+),Cu^(2+)and Zn^(2+),the two resins had little differences inadsorption properties.The results would havesome significance in the study of collecting andseparating noble metal ions.
出处
《化学试剂》
CAS
CSCD
北大核心
1992年第3期153-154,180,共3页
Chemical Reagents
基金
国家自然科学基金
